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Opdateret: 1 time 8 minutter siden

Ham Radio Deluxe 6.4.0.846 has been released

3 timer 8 minutter siden

This download is the same for FULL or TRIAL versions of Ham Radio Deluxe. This download includes all bug fixes to date. The Trial version converts to a Full version when a software activation key is purchased and applied to the software after installation. This enables operators who used the Trial version to maintain the logbook database and other settings after their purchase.

NEW ONLINE Manual – please consider visiting our wiki at: https://wiki.ham-radio-deluxe.com

(adsbygoogle = window.adsbygoogle || []).push({}); VHF Kenwood D-STAR – Tribander 144/220/440 MHz Kenwood D-STAR – Tribander 144/220/440 MHz May 21, 2016 No comments

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ITU officially confirms: Z6 prefix is illegal

søn, 17/06/2018 - 14:58

“In a repost by YT9TP (Serbia) it would appear that the International Telecommunication Union has officially confirmed use of the Z6 prefix is illegal.

This from ITU Operational Bulletin No. 1149, Jun”e 1st 2018.

Call sign series can be allocated only to the administrations of the ITU Member States by world radio communication conferences or, between
radio communication conferences, by the ITU Secretary-General.

In this respect, the attention of the ITU administrations is drawn to the
fact that ITU has not allocated call sign series Z6 to any of its Member States. Consequently, the utilization of call signs series Z6 by any entity without a formal allocation and consent of the ITU represents an unauthorized and illegal usage of this international numbering resource.”

Source:SouthGate

https://www.itu.int/dms_pub/itu-t/opb/sp/T-SP-OB.1149-2018-OAS-PDF-E.pdf

https://www.itu.int/pub/T-SP-OB.1149-2018

 

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5 reasons Hamvention is one of the most unique events on Dayton’s calendar

lør, 16/06/2018 - 14:44

by Nick Blizzard

Drone video of the Dayton Amateur Radio Associations’ Hamvention 2018 at the Greene County Fairgrounds and Expo Center  

— An event that has become a Dayton tradition is in full force this weekend.

Dayton Hamvention 2018 is happening at the Greene County Fairgrounds through Sunday. The event is in its seventh decade, draws thousands and provides an economic boost to the Dayton area.

Read Full Article: Link

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70MHz experimental NoVs now easier

fre, 15/06/2018 - 17:25

Following agreement with Ofcom, the RSGB is pleased to announce that a new much faster online process is now available for all Full Licensees to access the 70.5-71.5MHz experimental band.

Applications can now be made online for a new, annually-renewable Notice of Variation.

It works in a similar way to the 146-147MHz NoV.

This replaces the previous special research permit process and is expected to spur digital innovation at VHF.

Prospective applicants should ensure they read the supplementary information and must observe the NoV power and geographic restrictions.

Source:RSGB

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Second Public Test of FT8 DXpedition Mode Demonstrates High Contact Rates Possible Second Public Test of FT8 DXpedition Mode Demonstrates High Contact Rates Possible April 10, 2018 No comments

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News 70MHz experimental NoVs now easier 70MHz experimental NoVs now easier June 15, 2018 No comments

Following agreement with Ofcom, the RSGB is pleased to announce that a new much faster online process is now available for all Full Licensees to acces... Read more

Former Radio Amateur-Astronaut Named as Spain’s Minister of Science Former Radio Amateur-Astronaut Named as Spain’s Minister of Science June 15, 2018 No comments

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Former Radio Amateur-Astronaut Named as Spain’s Minister of Science

fre, 15/06/2018 - 17:16

Amateur Radio operator and European Space Agency (ESA) astronaut Petro Duque, ex-KC5RGG/ED4ISS, has been named as the Minister of Science in the new Spanish government. Duque, 55, first went into space aboard the Shuttle Discovery in 1998, and in 2003 he spent a week on the International Space Station, carrying out Amateur Radio on the International Space Station (ARISS) contacts with two schools in Spain.

Duque went to the ISS under a commercial agreement between the Russian space agency and the ESA. He also conducted a series of scientific studies during his ISS stay. Duque was Spain’s first astronaut.

Source:ARRL

(adsbygoogle = window.adsbygoogle || []).push({}); Equipment PowerPlus – Rugged Portable DC Power Management System PowerPlus – Rugged Portable DC Power Management System June 15, 2018 No comments

DESCRIPTION Rugged Portable DC Power Management System with built-in High-Efficiency Battery Charger!  > High contrast OLED display  > Power man... Read more

Kenwood  TS 890S at HamNation [ Video ] Kenwood TS 890S at HamNation [ Video ] May 24, 2018 No comments

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   2/4/5 StQ 7- 2 elements 40/30 – 4 elements 20/17/15 – 5 elements 12/10 Status QUAD: 2/4/5 StQ 7- 2 elements 40/30 – 4 elements 20/17/15 – 5 elements 12/10 March 31, 2018 No comments

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PowerPlus – Rugged Portable DC Power Management System

fre, 15/06/2018 - 13:40
DESCRIPTION Rugged Portable DC Power Management System with built-in High-Efficiency Battery Charger! 

> High contrast OLED display 
> Power management includes current and voltage readout and user-managed DC outputs
> Built-in UPS creates seamless transition between DC power and backup battery 
> Dual USB charging outputs for peripherals
> Visual and audible indication of low battery voltage or pending disconnect 
> Maximum current handling capacity – 40 amps  OWERplus is a remarkably compact, high power DC power system specifically designed for radio communications. It is a highly integrated product combining the function of a 12 VDC Uninterruptible Power System (UPS), high capacity battery charger, power distribution and capable power monitoring.

Its rugged design works well in both field, mobile and base station applications providing both automatic power changeover in the event of loss of DC power as well as built in battery charging capability for batteries with capacity up to 100Ah. 

Multiple overload protected outputs and built in USB charger ports make this a powerful combination of features simplifying the station, improving reliability and reducing the clutter of messy and inefficient DC wiring. The interconnections between all of these functions are handled internally within POWERplus.

Here is what POWERplus does:

• UPS
o Automatic changeover between DC power and emergency backup battery

• BATTERY CHARGER
o Multi-chemistry 3 and 4 stage high efficiency charger
o Adjustable charge rate and current monitoring

• USB CHARGER
o Dual USB charger outputs for phone/tablet/LED light charging
o Current limited outputs

• POWER MANAGEMENT
o Automatically disconnects the radio if the battery voltage is too high to protect your radio if something goes wrong with your DC Input.
o Monitors the battery and alerts you if the battery is getting too low and will even automatically disconnect to protect the battery from deep discharge.
o User adjustable DC output current limits
o Manual or automatic control of output groups

• POWER REPORTING
o Realtime monitoring of DC power supply and battery voltage and current
o Realtime monitoring of output loads
o Graphical indication of instantaneous load current

• ALARMS
o Visual and audible indication of low battery voltage or pending disconnect This rugged DC power management device + battery charger handles a variety of tasks and replaces a large number of other devices. 

Weight:. 11.3 ounces

Size: 8″W x 3.2″H $229.00 (adsbygoogle = window.adsbygoogle || []).push({}); Antenna JK Antennas JK65 6 Meter Yagi JK Antennas JK65 6 Meter Yagi May 27, 2015 No comments

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Review Hamfest 2017 – Preview of the Icom IC-7610 and IC-R8600 rigs Hamfest 2017 – Preview of the Icom IC-7610 and IC-R8600 rigs November 17, 2017 No comments

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Fldigi v4.0.17 now available

fre, 15/06/2018 - 13:29

The hard-working development team led by W1HKJ have announced the release of Fldigi v4.0.17.  This update release of Fldigi brings several bug fixes, performance improvements and several new features..  Full details are available in the ReadMe file available for download and below this announcement.

As with all of the FL suite, Fldigi continues to support both PowerPC and Intel (i386) processors; with individual downloads available for each architecture and can be downloaded here.

Version 4.0.17 Update release:

  •   flarq idtimer
    • Add 10 minute id timer to statFrame
  • Greek language update
    • updated el.po submitted by Haris, SV1GRB
  • Documentation Update
    • Add nanoCW, nanoFSK, Navigator interface.
    • Update macro matrix display (48 macros in 4 rows.
  • xmlrpc cat string
    • add send cat string to flrig similar to <RIGCAT macro
  • tmpfile
    • tmpfile() is apparently not thread safe on OS X
    • remove usage from SoundBase::format_supported(…)
  • Serial port discovery
    • Add /dev/rfcomm? blue tooth serial device names to serial device list
  • Log entries
    • Change mode entry for Olivia, MT63, Thor, Throb to include submode.
      • allows correct setting of mode / submode when retrieving a logbook entry.
  • rx/tx
    • correct action of tx over rx toggle
  • RTTY Quick pick
    • disable RTTY quick pick if using nanoIO or Navigator
  • flarq appdir
    • change test for FL_APPS folder
  • WinKey PTT
    • Enable winkey PTT
  • CW/FSK I/O on start
    • restore last connect state of Nav / tinyCW / tinyFSK when starting program
  • Default Lighted Button
    • Allow user to specify the default ON color for all lighted buttons not specifically configured.
  • ST/PR macro tags
    • Add macro tags for State and Province
  • Logbook read
    • Make Rx panel announcement of read user optional
  • Navigator
    • Add Navigator terminal unit support for FSK options setting panel
      •   RTTY browser decode
        • fix browser decoder sense when transceiver is in LSB type mode, i.e. FSK, LSB, LSB-D etc.
      •   8pskF
        • Fixed bug in 8psk 125F/250F init code
          • Bad constraint length was causing decoder to fail
        • New preamble for 8PSK FEC modes
          • FEC modes preamble is now a continuous tone at center-frequency
          • Gives reference for clicking &  selecting signal on waterfall.
          • Is backwards compatible with  previous-version 8psk preambles
        • Adjusted 8PSK-F modes flush/postamble length much longer
        • Can visually see the inlv flush and postamble “tail” on  waterfall
        • New flust/postamble extends beyond data, to prevent cutoff
        • Code, formatting, and comments cleaned-up for 8PSK code
  • nanoIO is the interface code for the device nanoIO, an Arduino project that provide hard line keying of CW and FSK
    • nanoFSK
      • Add interface and support code for nanoIO / tinyFSK Arduino FSK keyers
      • Modify waterfall frequency display for transceiver FSK
      • Modify dxcluster qsy operations to provide correct QSY for transceiver FSK
      • Add TTY transceiver mode recognition if transceiver mode string contains RTTY or FSK
    • nanoCW
      • Add CW support using nanoIO
      • CW WPM 5 to 100
      • CW dash/dot ratio: 2.5 to 3.5
  • quick pick rtty baud
    • add 100 Baud nanoIO
  • K2/K3/KX3 data modes
    • Add DATA / DATA-R as FSK type submodes if either tinyFSK, Navigator or Right-Channel FSK signaling interface is enabled¸
  • Modem start frequency
    • Change initialization of modem start up frequency – prevent unintended start @ 1000 Hz for every change in mode.
    • Modem startup will honor the sweet spot frequency unless it is incompatible with the modem requirement
  • fsq/ifkp audit logs
    • Enable audit log open/close from configuration panel
    • Correct date-time stamp in logs
  • RTTY browser decode
    • fix browser decoder sense when transceiver is in LSB type mode, i.e. FSK, LSB, LSB-D etc. 8pskF
    • Fixed bug in 8psk 125F/250F init code
      • Bad constraint length was causing decoder to fail
    • New preamble for 8PSK FEC modes
      • FEC modes preamble is now a continuous tone at center-frequency
      • Gives reference for clicking & selecting signal on waterfall.
      • Is backwards compatible with previous-version 8psk preambles
    • Adjusted 8PSK-F modes flush/postamble length much longer
      • Can visually see the inlv flush and postamble “tail” on waterfall
      • New flust/postamble extends beyond data, to prevent cutoff
    • Code, formatting, and comments cleaned-up for 8PSK code

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Review Elecraft KPA1500 Amplifier Presentation Elecraft KPA1500 Amplifier Presentation May 25, 2018 No comments

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Space Station Digital Amateur Radio TV System Transmitter Determined to be Defective

tor, 14/06/2018 - 19:29

The Amateur Radio on the International Space Station (ARISS) “Ham Video” digital Amateur Radio TV (DATV) transmitter on the International Space Station (ISS) is reported to be defective, with onboard repair not possible. Also known as HamTV, the DATV system stopped working in mid-April, and a subsequent test on June 1 using a second L/S band patch antenna on the Columbus module had failed. ARISS-EU Mentor Gaston Bertels, ON4WF, said ARISS plans to return the transmitter to Earth to repair, pending space agency approvals and availability of ARISS funds.

“Schools and crew members performing educational ARISS school contacts are delighted to use Ham Video,” Bertels said. “We will do the best we can to restart this service as soon as possible.”

Following extensive testing, the Ham TV system was first used for an ARISS school contact in February 2016. — Thanks to ARISS

Source:ARRL

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FEATURES • 5″ (108x65mm) high resolution color display, 800×480 pixels, and 24-bits colors. • The final stage uses field effect (MOSFET) tr... Read more

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The Diamond CX-210N is a low loss, two position coaxial switch providing very low loss and high isolation. It is rated DC to 3000 MHz and can handle u... Read more

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The third public test of FT8 DXpedition Mode on May 5 is being called a success. The goal of the exercise was to simulate a rare DXpedition pileup on... Read more

 WSJT-X Version 1.9.0-rc4 Release: WSJT-X Version 1.9.0-rc4 April 29, 2018 No comments

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Second Public Test of FT8 DXpedition Mode Demonstrates High Contact Rates Possible Second Public Test of FT8 DXpedition Mode Demonstrates High Contact Rates Possible April 10, 2018 No comments

The second public test of FT8 DXpedition Mode has shown that the mock DXpedition stations (“Foxes”) were able to work the pileups of callers (“Hounds”... Read more

MixW 4 is a new multi-mode, multi-platform software for radio amateurs. MixW 4 is a new multi-mode, multi-platform software for radio amateurs. April 06, 2018 No comments

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Second Test of FT8 DXpedition Mode Set for April 7 Second Test of FT8 DXpedition Mode Set for April 7 April 03, 2018 No comments

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A Pause in Storming : Solar Storm Forecast 06-14-2018

tor, 14/06/2018 - 17:55

“Space Weather quiets down this week as the hoped for mini-solarstorm misses Earth to the south. Aurora photographers will need to wait a while longer before another coronal hole rotates into the Earth-strike zone and sends us a new chance for a solar storm. Amateur radio operators are smiling this week as a new region rotates into Earth view, boosting the solar flux back into marginal levels for radio propagation. This region will be joined by a second region next week that should boost solar flux even more, just in time for Field Day 2018. GPS users should also be enjoying good signals this week. However, glitches may increase at low latitudes next week once that second active region rotates into view. Learn the details of these new regions, what’s coming from the Sun’s backside, and see what else the Sun has in store!

(adsbygoogle = window.adsbygoogle || []).push({}); Equipment EK1C 3 band QRP CW transceiver for 20, 30, 40 meters EK1C 3 band QRP CW transceiver for 20, 30, 40 meters May 01, 2017 No comments

EK1C 3 band QRP CW transceiver for 20, 30, 40 meters.  5 watts power output from 12 VDC.  Internal keyer, extended receive coverage, sold as an assemb... Read more

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News Sweden’s SAQ Announces Annual Alexanderson Day VLF Transmission on July 1 Sweden’s SAQ Announces Annual Alexanderson Day VLF Transmission on July 1 June 14, 2018 No comments

Sweden’s World Heritage Grimeton Radio Station SAQ Alexanderson alternator will be on the air on July 1 on 17.2 kHz for its annual Alexanderson Day tr... Read more

Reverse Beacon Network Beta Testing Separate Spot Stream for FT8 Reverse Beacon Network Beta Testing Separate Spot Stream for FT8 June 13, 2018 No comments

As a beta test, the popular Reverse Beacon Network (RBN) has announced that it’s now offering a separate telnet feed for FT8 spots (telnet.reversebeac... Read more

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Radio Amateurs in Canada — primarily in the Province of Quebec — have mounted a petition drive demanding that members of the House of Commons prompt d... Read more

CAMSAT Offers More Details on New Satellites, One Carrying HF Transponders CAMSAT Offers More Details on New Satellites, One Carrying HF Transponders June 12, 2018 No comments

CAMSAT, China’s Amateur Radio Satellite organization, has offered additional details about the three Amateur Radio satellites it plans to launch later... Read more

Iranian Radars Showing Up on 10 Meters Iranian Radars Showing Up on 10 Meters June 12, 2018 No comments

While 10 meters has not been the hottest band in the Amateur Radio toolkit of late, Iran apparently has found it an ideal spot to operate various rada... Read more

Sailor Grateful for Maritime Mobile Service Network Assistance Sailor Grateful for Maritime Mobile Service Network Assistance June 08, 2018 No comments

Phoenix sailor and radio amateur Timothy Henning, KE7WMZ, has expressed his gratitude to the Maritime Mobile Service Network (MMSN) for intercepting a... Read more

Sweden’s SAQ Announces Annual Alexanderson Day VLF Transmission on July 1

tor, 14/06/2018 - 17:27

Sweden’s World Heritage Grimeton Radio Station SAQ Alexanderson alternator will be on the air on July 1 on 17.2 kHz for its annual Alexanderson Day transmission. Three transmissions are scheduled: Startup/tuning at 0815 UTC, message transmission at 0845 UTC; startup/tuning at 1015 UTC, message transmission at 1045 UTC, and startup/tuning at 1215 UTC, message transmission at 1245 UTC. All three transmission events will be available via YouTube.

 

Amateur Radio Station SK6SAQ will be active on CW (7.035 MHz or 14.035 MHz) or SSB (3.755 MHz), with two operating positions planned. Send reports to SAQ and SK6SAQ via email or the bureau. The World Heritage Grimeton Radio station site will be open to the public on Alexanderson Day.

Source:ARRL

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Yaesu FT-991 compared with the FT-817ND – HF SSB and CW Yaesu FT-991 compared with the FT-817ND – HF SSB and CW September 22, 2015 No comments

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RSPduo gives outstanding results vs a rig costing 10X the price!

ons, 13/06/2018 - 18:52

This video, released today by AE5X shows how well the RSPduo performs up against the Flex6300:

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VERO China New Arrival: 40 Watts Dual Band Mobile Radio VR-6900 With Band Scope and APRS Display

ons, 13/06/2018 - 14:54

 

Firmware upgrade remote VR-6900 can update firmware remotely, fix some bugs when find it

 

Optional APRS VR-6900 support the optional APRS and display the info on le TFT LCD display

 

Optional Bluetooth Speaker Micrphone VR-6900 support connect the Bluetooth speaker microphone Band Scope VR-6900 support muitl band scope search
1: Frequency Mode Search
2, Band mode Search
3. Channel Mode Search Wide Band Frequency TX:136-174&400-480MHz

RX: 78-108Mhz   108-136MHz     136-174MHz
350-400MHz    400-480MHz   480-520 MHz High Power Output VR-6900 has adjustable power function
1, UHF : 40w (High) 25 W (Mid) 8W (Low)
2, VHF : 45w (High) 25 W (Mid) 8W (Low) APRS Display (Optional) TX:136-174&400-480MHz

RX: 78-108Mhz  108-136MHz     136-174MHz
350-400MHz     400-480MHz    480-520 MHz Cross-Band /In-Band Repeater Connector VR-6900 support connect a extra handheld radio to be a Cross-Band repeater or In-Band repeater. Zone Function VR-6900 support A B C D zone,each zone has 128 channesl.Total 512 channels REMOVABLE PANNEL VR-6900 the body and the panel removable, it very easy to install in the car, The body is in the trunk of the car, and the panel is freely installed in the cab

 

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Reverse Beacon Network Beta Testing Separate Spot Stream for FT8

ons, 13/06/2018 - 12:18

As a beta test, the popular Reverse Beacon Network (RBNhas announced that it’s now offering a separate telnet feed for FT8 spots (telnet.reversebeacon.net port 7001), in addition to the current spot feed (telnet.reversebeacon.net port 7000), which will be repurposed to handle only CW and RTTY spots. In addition, a beta version of Aggregator Version 5 that can handle FT8 spots received from WSJT-Xwill be available on the RBN website, with instructions on how RBN node operators can configure their nodes to spot FT8 call signs on one or more bands; this will not interfere with the ability to spot CW and RTTY call signs, the RBN team assured in its announcement, explaining its reasoning for the move. The beta test follows a limited alpha test aimed at getting a feel for the spot load and other implications of carrying FT8 spots on the RBN.

“The most striking characteristic of FT8 spots is their sheer quantity,” the RBN announcement said, citing weekday statistics from May 23 and 24 when FT8 spots represented 86% and 87% of all spots, respectively, while CW spots were 13% and 14%, respectively, and RTTY spots were below 1%. Throughput on both days totaled some 30,000 spots.

“Whether due to the startling popularity of the new mode, or to the ability to spot stations at 22 dB below the noise level, it seems obvious that adding FT8 spots to our spot flow could have a huge impact on the infrastructure of the RBN,” the RBN announcement said. “These numbers suggest that if only 20 – 30 RBN nodes added FT8 spots, those spots could outnumber the total CW and RTTY spots being delivered by the 140 – 150 nodes currently active on the network, doubling the total required throughput.”

The RBN team said it wanted to find out whether RBN servers would be up to the task before the fall contest season. “Operators of ‘retail’ DX clusters are encouraged to offer the option of RBN spots with and without FT8 spots, as they now often give users a choice between spot streams with and without Skimmerspots, and to advertise when they begin to carry FT8 spots,” the announcement said.

A beta version of Aggregator Version 5 that can handle FT8 spots received from WSJT-X will be available on the RBN website, along with instructions on how RBN node operators can configure their nodes to spot FT8 signals on one or more bands.

“We will closely monitor how the RBN servers handle this new load, as more and more nodes begin sending FT8 spots,” the announcement said, adding that the RBN reserves the right to take any necessary steps to protect the core mission of the RBN, including shutting off the FT8 stream on major CW and RTTY contest weekends or discontinuing FT8 spotting altogether. Even then, PSKReporter would continue to carry FT8 spots, the announcement pointed out.

“We hope we’re not doing this in a vacuum,” the RBN team said, noting that it’s been collecting the views of contesters and DXers, “and we think that we’re headed in the right direction.”

The RBN team consists of KM3T, N4ZR, PY1NB, SV3SJ, and W3OA.   

Source:ARRL

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tir, 12/06/2018 - 18:28

Radio Amateurs in Canada — primarily in the Province of Quebec — have mounted a petition drive demanding that members of the House of Commons prompt decisive regulatory action against a Quebec resident who has been causing deliberate interference. The petition does not spell out the particulars of the allegations but says the alleged offender — apparently unlicensed — is already known to authorities. Petitioners claim that the individual’s “malicious intentions” have been “threatening the security of emergency radio communication in the province,” and they called upon Parliamentary lawmakers “to ensure the security” of HF radio communication.

“For 2 years, a Nicolet resident, near Trois-Rivières [Quebec], illegally set up a transmitting radio station and is generating interference on purpose,” the petition recounts. “Amateur Radio operators in Quebec have identified the illegal radio station and brought it to the attention of Innovation, Science and Economic Development (ISED) Canada, and its inspectors seized the individual’s radio equipment.” One of ISED’s functions is telecommunications regulation.

According to the petition, the alleged offender “acquired new equipment right away and returned to jamming the airwaves.” The petition identifies the alleged offender as a male who is “known to police in Nicolet and Trois-Rivières” and “has regular encounters with the law.”

“We are calling on the government to provide more support to the Department of Innovation, Science and Economic Development Canada, so that it can intervene more decisively in this matter,” the petition declared.

Radio Amateurs of Canada (RAC) — the country’s national Amateur Radio organization — was noncommittal. “While we have not had a chance to investigate the specific details of the incidents [that] the petition refers to, we agree with the importance of acting to support the security of high frequency communications,” RAC said this week.

As of June 12, the online petition had gathered more than 625 signatures, primarily from Quebec and Ontario. Canada has more than 50,000 Amateur Radio license

Source:ARRL

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CAMSAT Offers More Details on New Satellites, One Carrying HF Transponders

tir, 12/06/2018 - 13:58

CAMSAT, China’s Amateur Radio Satellite organization, has offered additional details about the three Amateur Radio satellites it plans to launch later this year. Two of the satellites, designated CAS-5A and CAS-6, will carry transponders, and one of them will offer HF capability. CAMSAT’s Alan Kung, BA1DU, told ARRL that the 6U CAS-5A will carry two HF transponders and two V/UHF transponders. The plentiful equipment package includes an H/T (21/29 MHz) mode linear transponder, an H/U (21/435 MHz) mode linear transponder, an HF CW telemetry beacon, a V/U linear transponder, a V/U FM transponder, a UHF CW telemetry beacon, and UHF AX.25 4.8k/9.6k baud GMSK telemetry.

  • The H/T mode linear transponder will have a 30 kHz wide uplink centered on 21.400 MHz, and a downlink centered on 29.490 MHz. RF output is 0.5 W.
  • An HF CW telemetry beacon will transmit on 29.465 MHz with 0.1 W.
  • The H/U mode linear transponder will have a 15 kHz wide uplink centered on 21.435 MHz, and a downlink centered on 435.505 MHz. The RF output is 0.5 W.
  • The V/U mode linear transponder will have a 30 kHz wide uplink at 145.820 MHz, and a downlink at 435.540 MHz. The RF output is 0.5 W.
  • The V/U mode FM transponder will uplink at 145.925 MHz, and downlink at 435.600 MHz. The transponder passband is 15 kHz, and the RF output is 0.5 W.
  • The UHF CW telemetry beacon will transmit on 435.570 MHz, with an RF output of 0.1 W.
  • UHF AX.25 4.8k/9.6k baud GMSK telemetry will transmit on 435.650 MHz at 0.5 W.

Kung told ARRL that the HF, VHF, and UHF antennas are quarter-wave monopoles.

A satellite within a satellite, the tiny CAS-5B, weighing 0.5 kilogram, will be deployed from CAS-5A in orbit. It will carry a UHF CW beacon on an Amateur Radio frequency. Both CAS-5A and CAS-5B will be placed into 539 × 533 kilometer, 97.5° orbits. They will launch from the Jiuquan Satellite Launch Center in late September.

The 50-kilogram CAS-6 microsat will include a VHF CW telemetry beacon, a U/V mode 20 kHz linear Amateur Radio transponder, and AX.25 4.8k baud GMSK telemetry. It will also carry an atmospheric wind detector and other systems that will operate on non-amateur frequencies.

A launch at sea on an as-yet undetermined date is planned for CAS-6 from the China Academy of Launch Vehicle Technology. The microsat will be placed into a 579 × 579 kilometer, 45° orbit

Source:ARRL

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Retevis RT-95 Dual Band Mobile Transceiver Review – Ham Radio Q&A

tir, 12/06/2018 - 12:39

New Black Retevis RT95Dual Band 200 Channels Mobile Car Radio

Description:
RT95 Mobile Radio has nice housing, stoutness & stability, advanced and
reliable functions, perfect & valuable. This amateur mobile radio especially designsfor drivers and it pursues philosophy of innovation and practicality.

Main Feature:

  • Adopt superior quality material, better technology and high quality radiator toensure stable and durable operation
  • 180 degree rotatable TFT LCD display
  • Full alloy body for heat radiation
  • Amateur mode and professional mode for different operation requirement
  • Distribute buttons reasonably, convenient for operation
  • Separate band width setting for each single channel, Wide 25K, Middle band20K, Narrow band 12.5K
  • 200 programmable memory channels, identified by editing name
  • Separate CTCSS, DCS, DTMF, 5Tone setting for each single channel,

rejecting extra calling from other radios

  • Various scan functions including CTCSS/DCS scan function
  • Smart menu control and PC programming control
  • Voltage level protection
  • LCD brightless control
  • Automatic power on function
  • Main unit and microphone key lock function
  • 5Tone signaling for data transfer,alarm, all call, ANI, remote kill, remote

waken

  • DTMF-ANI or 5Tone-ANI for automatical calling recognition
  • Password function
  • Dualwatch function
  • Talk around function
  • Frequency reverse function
  • Offset function

Specifications

GENERAL

Frequency Range VHF:144-148MHz UHF: 430~440MHz Number of Channels 200 channels Channel Spacing 25K (Wide Band) 20K(Middle Band) 12.5K (Narrow band) Phase-locked Step 2.5KHz, 5KHz, 6.25KHz, 10KHz, 12.5KHz, 20KHz, 25KHz, 30KHz, 50KHz Operating Voltage 13.8V DC ±15% Squelch Carrier/CTCSS/DCS Frequency Stability ±2.5 ppm Operating Temperature -20℃~+60℃ Dimensions(mm) 124 (W) x 163(D) x 39 (H) Weight about 0.64Kg

RECEIVER

Wide band Narrow band Sensitivity (12dB Sinad) ≤0.25μV ≤0.35μV AdjacentChannelSelectivity ≥60dB ≥60dB Audio Response +1~-3dB(0.3~3KHz) +1~-3dB(0.3~2.55KHz) Hum & Noise ≥45dB ≥40dB Audio distortion ≤5% Audio power output >2W@8

TRANSMITTER

Wide band Narrow band Power Output 25W / 15W / 5W Modulation 16KΦF3E 11KΦF3E Adjacent Channel Power ≥70dB ≥60dB Hum & Noise ≥40dB ≥36dB Spurious Emission ≥60dB ≥60dB Audio Response +1~-3dB(0.3~3KHz) +1~- dB(0.3~2.55KHz) Audio Distortion ≤5%

Package includes:

  • 1 x Mobile radio
  • 1 x Power cable
  • 1 x Handheld mic
  • 1 x One pack of screw and accessories
  • 1 x User’s manual

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App - Mobile RFinder – The World Wide Repeater Directory now has Jamming Reports! RFinder – The World Wide Repeater Directory now has Jamming Reports! April 27, 2016 No comments

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Iranian Radars Showing Up on 10 Meters

tir, 12/06/2018 - 12:27

While 10 meters has not been the hottest band in the Amateur Radio toolkit of late, Iran apparently has found it an ideal spot to operate various radars. The interference was audible in International Amateur Radio Union Region 1 (IARU R1) and perhaps elsewhere in the world.

“Iranian radars were very active on our 10-meter band every day [in May],” reported IARU Monitoring System (IARUMS) Coordinator for Region 1 Wolf Hadel, DK2OM, in the IARUMS newsletter. “On 28.860 MHz, we could daily receive the strong and long-lasting signals. Other frequencies were used in [frequency hopping] mode.”

The list of additional Amateur Radio intruders on 10 meters included — or in some cases, no longer included — some of the usual suspects. Hadel reported that FM signals from Russian taxi dispatchers, driftnet fishery buoys, and Citizens Band “abusers” in Brazil have been operating on various 10-meter frequencies, “as usual.”

 

Meanwhile, some chronic intruding signals have disappeared. Among the missing is the 14,295 kHz harmonic from Radio Tajik on 4,765 kHz. Radio Hargeysa in Somaliland on 7,120 kHz is said to have been off the air for several weeks due to a transmitter failure. “We did not miss the transmissions,” quipped Hadel, who also expressed the hope that the broadcast battle between Radio Eritrea and Radio Ethiopia on 40 meters may now be at an end. For some time now, Radio Eritrea contended with Ethiopian “white noise” interference on 7,140 and 7,180 kHz. This month, Ethiopia announced that it would accept a peace deal with Eritrea to end a bloody 20-year-old dispute.

Hadel reported a “hybrid modem” signal for a few days in May on 14.000 MHz from the Israeli Navy, consisting of six pre-carriers — PSK4 parallel and MIL-188-110A modified. Just below 20 meters, on 13.998.0 MHz, transmissions of MFSK-16 from Russia were observed on May 31. The signal was heard up to 14.001.165 MHz in the amateur band.

Source:ARRL

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VHF Alinco Released a new radio Today – DJ-R200D Alinco Released a new radio Today – DJ-R200D December 05, 2016 No comments

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Geochron Digital 4k UHD Review

man, 11/06/2018 - 16:19

“This is the ultimate jewelry for your dream ham shack! The Geochron Digital 4k UHD gives viewers beautiful displays of the Earth with the sunrise-sunset rendered in real-time through a small computer that plugs directly in to your TV via HDMI. The size of your display is only limited by the size of your TV, as you take in the terrestrial movement of the Earth’s orbit in sync with the Sun. The Geochron Digital 4k UHD displays a full-featured Geochron World Clock on any 4k TV, with every mapset and lighting option available in the famous mechanical clock but at a fraction of the cost. Now in the digital format, users customize markers on the map, and recieve (with internet) real time updates. • Lifetime updates for five mapsets. • Live location of the International Space Station, updated every 15 seconds. • High Speed demonstration mode. One year in 15 seconds! • Eight Locations Pins you can place anywhere on the map. • Static Overlays, showing: Earth at Night, major shipping routes and major flight routes (new! as of 05/2018)”

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Sailor Grateful for Maritime Mobile Service Network Assistance

fre, 08/06/2018 - 12:25

Phoenix sailor and radio amateur Timothy Henning, KE7WMZ, has expressed his gratitude to the Maritime Mobile Service Network (MMSN) for intercepting and handling his distress call on 14.300 MHz. Net control operator Harry Williams, W0LS, caught Henning’s call requesting assistance with an urgent medical condition on May 23. Henning, some 200 nautical miles south of Ensenada, Mexico, in his sailing vessel Victory Cat, reported that a severe vision problem had developed in his right eye, and he was seeking immediate medical attention and advice.

Williams contacted the US Coast Guard in Alameda, California, relaying all information concerning the medical problem and staying on the air with KE7WMZ for several hours. The Coast Guard, in turn, relayed the information to the on-duty flight surgeon who advised that Henning seek immediate medical attention at the closest port of call.

It was decided that Henning would continue on to Ensenada, and the Coast Guard arranged to have someone meet him there and transport him to the Balboa Naval Hospital in San Diego, while his wife stood by with the vessel at the dock.

Ultimately, it was determined that Henning had a detached retina, and he was transported to Phoenix for surgery.

“I appreciate, beyond words, that the Maritime Net was able to help us get in contact with the USCG and simply be at the other end of the HF radio, helping us through a challenging time,” Henning told the MMSN afterward. “I especially want to thank Harry, W0LS. He was extremely professional and invaluable in linking us effectively with the USCG. We were just completing our 10 years round-the-world sail voyage.”

The Maritime Mobile Service Net operates daily on 14.300 MHz from 1700 UTC to 0200 UTC. It is celebrating its 50th anniversary this year.

Source:ARRL

Review ASSEMBLY “N” CONNECTOR FOR ULTRAFLEX 13 MKII 720p ASSEMBLY “N” CONNECTOR FOR ULTRAFLEX 13 MKII 720p December 11, 2015 No comments

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fre, 08/06/2018 - 01:19

In the wake of an investigation resulting from a 2017 ARRL complaint, the FCC has proposed fining HobbyKing and associated entities $2.8 million for apparently marketing noncompliant RF devices and failing to comply with Commission orders. According to a June 5 FCC Notice of Apparent Liability (NAL), HobbyKing appears to have sold audio/video transmitters (A/V) intended for use with unmanned aircraft, such as drones, marketing them as Amateur Radio equipment in some instances.

“The Enforcement Bureau previously issued a Citation notifying HobbyKing of its legal and regulatory obligations and ordering it to cease and desist from marketing noncompliant equipment,” the FCC said in the NAL. “Additionally, the Bureau issued a Citation against HobbyKing for failing to fully respond to a Letter of Inquiry.Despite these Citations, HobbyKing has continued its apparently unlawful practices.”

HobbyKing had denied that it was marketing its drone transmitters to US customers, but ARRL’s January 2017 complaint pointed out that ARRL Laboratory Manager Ed Hare, W1RFI, was able to purchase two drone transmitters from HobbyKing and have them shipped to a US address for testing in the Lab.

In his 2017 letter to the FCC Spectrum Enforcement Division, ARRL General Counsel Chris Imlay, W3KD, described the transmitters as “blatantly illegal at multiple levels,” and noted that they used frequencies intended for navigational aids, air traffic control radar, air route surveillance radars, and global positioning systems and not Amateur Radio frequencies, as the marketer had purported.

ARRL told the Enforcement Bureau in 2017 that the devices “represent a real and dangerous threat to the safety of flight, especially when operated from a drone platform that can be hundreds of feet in the air.” Hare and ARRL Lab staffers Mike Gruber, W1MG and Bob Allison, WB1GCM, tested the units. Imlay credited ARRL Central Division Director Kermit Carlson, W9XA, and the Electromagnetic Compatibility Committee he chairs, for calling attention to the issue and prompting ARRL’s action.

In a related news release this week, the FCC said that while HobbyKing represented that its transmitters operated in designated Amateur Radio bands, the Commission’s investigation uncovered that 65 models could also apparently operate outside of the ham bands. The FCC noted that Amateur Radio equipment used to telecommand model craft are limited to 1 W (1,000 mW), but three transmitters included in the NAL “apparently operate at significantly higher power levels of 1,500 mW and 2,000 mW.”

“The Commission generally has not required amateur equipment to be certified, but such equipment must be designed to operate only in frequency bands allocated for amateur use,” the NAL said. “If such equipment can operate in amateur and non-amateur frequencies, it must be certified prior to marketing and operation.” The FCC also said in its NAL that consumers who own such HobbyKing devices “should cease using them immediately or risk enforcement action.”

The FCC this week also issued an Enforcement Advisory cautioning that drone transmitters must comply with FCC rules in order to be marketed to customers in the US, and that operators must comply with FCC rules.

“However, many A/V transmitters that purport to operate on amateur frequencies also operate on frequencies that extend beyond the designated amateur frequency bands,” the advisory said. “If an A/V transmitter is capable of operating outside of the amateur frequency bands, it cannot be advertised, sold, or operated within the United States without an FCC equipment certification. Individuals without an amateur license may not use such radio equipment, if it is designed solely for use by amateur licensees.”

Imlay said the FCC action addressed “another of many instances in which unscrupulous importers import and market products in the US touted as Amateur Radio equipment but actually marketed to the general public, and which, in this case, have a high potential for abuse and interference to other radio services and to radio amateurs.” Imlay characterized the FCC NAL as an important “line in the sand” aimed at keeping companies from encouraging the general public to use the amateur bands without a license.

Source:ARRL

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