Pskov Amateur Radio Club
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Rodolfo Parisio, IW2BSF, reports that a Slow-Scan Television (SSTV) transmission event from the International Space Station is currently scheduled to begin on Tuesday, Dec. 1 starting at 12:30 UTC, ending at
18:25 UTC, and again on Wednesday, Dec. 2 starting at 11:50 UTC and ending at 18:25 UTC.Listen for SSTV signals to be downlinked at 145.800 MHz +/- Doppler shift. The mode of transmission is expected to be PD 120. These times will allow for one pass over the Eastern USA near the end of the scheduled times.Received images of reasonable quality can be posted at the ARISS SSTV Gallery at  https://www.spaceflightsoftware.com/ARISS_SSTV/Future updates on this event will be posted @ARISS_status on Twitter.Rodolfo Parisio, IW2BSF SourceСообщение Moscow Aviation Institute plans SSTV event from ISS появились сначала на PSKOV.

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The map below shows the FT8 signals heard on 28 MHz on Friday the 20th of November 2020.There was evidence of some Sporadic-E to central Europe as well as F2 signals out around the 3000km mark from Greece to Russia. Even alone signal from the west of Australia made it through.The signals that were of real interest to me however were the ones from the south-east of the USA. This is a classic example for me of an F2 layer opening on 28 MHz. A lone VO station appeared from the 1-hop zone near Newfoundland (~3000kms) and there was a group of stations clustered around the 2-hop zone near Florida (~6000kms).During the sunspot minimum, F2 propagation via north-south paths on the 10-meter band is always possible. As we climb out of the minimum then we should expect to see more east-west openings on the band.From my vantage point here in Ireland, the Great-Circle path to Florida is the most southerly of the east-west openings to the USA and it would be the first area I would expect to hear with an F2 layer opening on 10-meters.The solar-flux on the 20th of November 2020 was around the 80 marks as opposed to say 67 around the time of sunspot minimum. We still have some way to go before we get F2 openings from NW Europe to say Japan or California on 28 MHz but at least we’re on the way up.I’d suspect that the conditions on 28 MHz in 12-months time in November 2021 should be dramatically better than now. Onwards and upwards!SourceСообщение F2 opening to the USA on 28 MHz – 20th Nov 2020 появились сначала на PSKOV.

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Activity Days on “Digi Mode VHF” VHF on November 28, 2020 – the first round on November 28, 2020, will be held I, a round of activity days on the VHF “Digi Mode VHF”.The “Digi Mode VHF” VHF activity days are held for the 10th time on all VHF bands, they are not competitions and are held with the purpose:The popularization of digital types of communication on VHF;Meeting the needs of radio amateurs in conducting VHF radio communications;Experimental work with digital communication types;Testing of amateur radio communications equipment;
DX installations;Improvement of the operator’s skill;Based on the results of the season of activity days and conducted tours, ratings of participants are made.SourceСообщение Activity Days on VHF “Digi Mode VHF” November 28, 2020 – first tour появились сначала на PSKOV.

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The Radio Amateurs of Canada (RAC) held their annual conference online this year and as part of the event, there was a talk by Ron Schwartz on FT8 DXing on the 50 MHz band.The 64-minute video is shown below…There are some interference and dropouts in the presentation during the first 28-minutes but the second half is much better.This video gives an interesting perspective of what DXing on 6m looks like from a Canadian perspective and it should be of interest to anyone thinking of getting going on the 50 MHz band.SourceСообщение 6m FT8 DXing by VE3VN появились сначала на PSKOV.

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For the casual breadboard experimenter with a microcontroller and a few peripherals, there’s little concern over interconnects as a set of jumper wires will suffice. But as any radio amateur will tell you though, at higher frequencies, it’s a very different affair. [Ria Jairam N2RJ] has embarked upon a series of videos exploring co-axial cable and its various connectors, and her first offering features the humble UHF connector, sometimes known as the PL259. Though it’s one of the older choices and its design flaws mean that “UHF” is more of an aspiration for it than a reality, it remains a common connector at the lower end of the amateur radio frequency range.She starts with a brief history of co-axial cable, before introducing the UHF connector. We’re introduced to its major flaw, in that it doesn’t present a constant impedance. The resulting mismatch presents a significant problem to a transmitter, especially at higher frequencies. We’re then taken through the various different models of UHF connectors, including those with honeycomb dielectric to minimize the mismatch and the fancy expensive plugs with strain relief. Finally, she takes us through the proper fitting of a PL259 plug, something that there’s a bit more to than most of us might think. Altogether it’s an interesting and informative watch from an engaging and knowledgeable host, and we look forward to more.Meanwhile, the field of RF connectors is something we’ve dipped into from time to time ourselves.SourceСообщение Coaxial Connectors, Starting With The PL259 появились сначала на PSKOV.

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The deadline to apply for the US Department of State Foreign Service Information Management Technical Specialists-Radio (IMTS-R) positions is December 1, 2020.Foreign Service IMTS-Rs design, install and maintain radio and telecommunications systems. They provide radio support for presidential, congressional, and other VIP visits. These radio specialists work from a regional location, overseas, or domestically.Extensive travel is required to support radio telecommunications systems, such as land mobile radio (LMR), HF, VHF, and UHF radio networks at State Department missions around the world.Potential applicants should read the Foreign Service Specialist selection process page before applying. To begin the online application process, visit the position announcement. The deadline to submit completed applications is December 31, 2019. Applicants must be US citizens, at least 20 years old to apply, and at least 21 years old to be appointed. Applicants must also be available for worldwide service and be able to obtain all required security, medical, and suitability clearances. Email for additional information. SourceСообщение Still Time to Apply for Foreign Service Information Management Technical Specialists-Radio Positions появились сначала на PSKOV.

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“The Gathering” will be the theme for the 2021 Dayton Hamvention®. Hamvention General Chair Rick Allnutt, WS8G, said the theme reflects what has been missing from our lives most of this year.“We have spent the last 6 months being bound to our houses and small groups,” he said. “We are very optimistic that when May arrives, we will be allowed to get together.”Allnut, a medical doctor with a master’s degree in public health, said Hamvention management is closely following the coronavirus situation and believes it will improve enough by May that government restrictions on travel and large groups will be relaxed. The Hamvention team will continue to follow developments.“We hope we will all be able to get together, talk about ham radio, and share the interaction we have missed,” Allnutt said. “The Gathering” theme acknowledges the role that Hamvention plays in amateur radio.Hamvention 2021 will be held May 21 – 23 at the Greene County Fairgrounds and Expo Center in Xenia, Ohio. SourceСообщение Dayton Hamvention Announces its 2021 Theme — “The Gathering” появились сначала на PSKOV.

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The Airspy HF+ Discovery sets a new standard in terms of reception performance with extra pre-selectors for all the supported bands and a New DSP Core to optimize the gain distribution and the filtering parameters in real-time and dig deeper in the noise.OverviewThe signal path includes very high dynamic range data converters along with high-performance passive mixers with an excellent Polyphase Harmonic Rejection structure. The included band-tracking pre-selectors eliminate unwanted interference and preserve the dynamic range of the receiver. <strong>With its world-class strong signal handling capability and incredibly Low Noise</strong>, the HF+ Discovery is the ideal companion for <strong>All your High-Performance Receive Scenarios.</strong>Both the architecture and level of integration achieved in this design allow us to bring top performance reception at a very affordable price. All the major SDR software is supported. Check the <a href="https://airspy.com/download/">download page</a>.Ready to discover all these signals hiding in your spectrum?Improved Architecture<a href="https://pskovradio.club/wp-content/uploads/2020/11/airspy-hf-discovery-is-the-most-refined-hf-vhf-sdr.png">Media</a>Unrivaled Noise Reduction Processing
We spent a lot of time understanding RF noise, its structure, and how it interacts with legitimate signals. Today, we have one of the most flexible and acoustically pleasant noise reduction algorithms on the market. The applications range from high-fidelity hiss removal for Broadcast FM signals to unburying weak SSB signals from the noise floor. Our algorithm doesn’t kill the highs to give you a false impression of loudness, yet it doesn’t have the typical high tone artifacts that plague popular noise reduction algorithms like LMS and Spectral Subtraction.Here’s a very weak SSB signal in the 40m bands, with and without our Digital Noise Reduction. Check by yourself!<a href="https://pskovradio.club/wp-content/uploads/2020/11/airspy-hf-discovery-is-the-most-refined-hf-vhf-sdr.jpg">Media</a>We concentrated state of the art DSP and networking techniques into our SpyServer software to allow multiple users to stream high-quality IQ data from the same receiver at the same time. No compromises in the quality were made like it is usually done in Web SDR interfaces. You get actual IQ data you can process with your plugins and extract the last bit of information out of it.The server software is highly scalable and can run on computers as small as the <a href="http://www.orangepi.org/orangepizero/">$7 Orange Pi Zero</a> to top end 64bit servers with multiple cores/CPUs, including the popular Raspberry Pi series.<a href="https://pskovradio.club/wp-content/uploads/2020/11/airspy-hf-discovery-is-the-most-refined-hf-vhf-sdr-1.jpg">Media</a>HF TunerAirspy HF+ Discovery achieves excellent HF performance by means of a low-loss preselection filter, high linearity LNA, high linearity tunable RF filter, a polyphase harmonic rejection (HR) mixer that rejects up to the 21st harmonic and multi-stage analog and digital IF filtering.The 6 dB-stepped AGC gain is fully controlled by the software running in the DSP which optimizes the gain distribution in real-time for optimal sensitivity and linearity. Harmonic rejection is a key issue in wideband HF receivers because of the large input signal bandwidth of the input signal. The output of the IF-filter is then digitalized by a high dynamic range sigma-delta IF ADC for further signal processing in the digital domain.VHF TunersExcellent FM performance is also achieved by using optimized signal paths composed of band filters, high linearity LNAs with a stepped AGC, a polyphase harmonic rejection mixer, and IF filters optimized for the FM broadcast bands.The amplifier gain is switchable in 3 dB-steps and fully controlled by the AGC running in the DSP. The RF signal is converted to baseband by a high linearity passive mixer with a polyphase harmonic rejection structure. The low-IF signal…
SourceСообщение Best Black Friday Deals for 2020 for HAM RADIO появились сначала на PSKOV.

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At the virtual Radio Amateurs of Canada conference last September, teacher Kelly Shulman, VE3KLX gave an interesting presentation about launching amateur radio payloads on high altitude balloons.As the video below highlights, high altitude balloons and scientific experiments can make amateur radio relevant to a younger generation. In terms of cost and technical ability, many schools might aspire to do their own high altitude balloon experiments whereas a CubeSat / satellite would be out of the question.https://youtu.be/zDqPXCncmtESourceСообщение Guide to launching amateur radio payloads by balloon by VE3KLX появились сначала на PSKOV.

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RadioShackThe good news is that as of today RadioShack has officially been purchased by Retail Ecommerce Ventures (REV), giving the troubled company a new lease on life. The downside, at least for folks like us, is that there are no immediate plans to return the iconic electronics retailer to its brick-and-mortar roots. As the name implies, REV specializes in online retail, having previously revamped the Internet presence of other bankrupt businesses such as Pier 1 Imports and Dressbarn.MediaWhile the press release doesn’t outright preclude the possibility of new physical RadioShack locations, it’s clear that REV believes the future of retail isn’t to be found in your local strip mall. As the US mulls further lockdowns in response to the continuing COVID-19 pandemic, it’s hard to disagree. There will be millions of bored kids and adults looking for something to do during the long winter nights, and an electronic kit or two shipped to their door might be just the thing.REV says they plan to relaunch the rather dated RadioShack website just in time for the company’s 100th anniversary in 2021. As of this writing the website currently says that sales have been temporarily halted to allow for inventory restructuring, though it’s unclear if this is directly related to the buyout or not. Getting an accurate count of how much merchandise the company still has on hand after shuttering the majority of their physical locations in 2017 certainly sounds like something the new owners would want to do.Like most of you, we have fond memories of the Golden Age of RadioShack, back before they thought selling phones and TVs was somehow a good idea. To their credit, they did try and rekindle their relationship with hackers and makers by asking the community what they’d want to see in their stores. But we all know how that story ended. While it doesn’t look like this news will get us any closer to having a neighborhood store that stocks resistors, there’s a certain comfort in knowing that RadioShack kits and books will still be around for the next generation.
SourceСообщение RadioShack to be reborn появились сначала на PSKOV.

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SourceСообщение Tips on Operating Linear Amateur Radio Satellites (Part 2) появились сначала на PSKOV.

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Chris from our Development Team gives an overview of Over-The-Horizon (OTH) High Frequency (HF) Analysis in Systems Tool Kit (STK) that is new in version 12.1. This feature can be used for both communications modeling as well as radar modeling. This uses the VOACAP model for skywave propagation losses. SourceСообщение Video demonstrating 3D propagation simulation появились сначала на PSKOV.

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The US Coast Guard has invited comments by January 21, 2021, on a proposal to discontinue HF voice watchkeeping. The proposal appeared on November 20 in the Federal Register. The USCG proposes to cease monitoring 4125, 6215, 8291, and 12,290 kHz, in the contiguous US and Hawaii, due to a lack of activity.“We believe this change would have a low impact on the maritime public, as commercial satellite radios and Digital Selective Calling (DSC) marine-SSB HF radios have become more prevalent onboard vessels,” the Coast Guard said. “However, we would like your comments on how you would be affected if we terminated monitoring HF voice-only distress frequencies within the contiguous US and Hawaii, particularly if you use HF, but do not currently have a commercial satellite radio or an HF DSC-capable radio aboard your vessel.”The Coast Guard said it would continue to monitor HF DSC distress alerting for all existing regions and voice distress and hailing from Kodiak, Alaska, and Guam. The Maritime Mobile Service Net (MMSN) on 14.300 MHz remains available to less-equipped mariners who need assistance in emergencies. SourceСообщение Coast Guard Proposes to Discontinue HF Voice Watchkeeping появились сначала на PSKOV.

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Within the framework of the Diploma Program “Named Border Guard Outposts” another diploma “Andrey Korobitsyn Border Guard Outpost” was established. The diploma has 2 variants – basic and 1st-degree diploma.MediaА. I. Korobitsyn was born in 1904 in the village of Kurakino, Totemsky u. Vologda sponge in a large family of a poor peasant.In 1926 he was drafted into the Red Army and sent to the Sestroretskaya frontier post of the Leningrad Military District. On the night of October 21, 1927, Komsomol member Andrey Korobitsyn joined the outfit. Bypassing his station, he noticed four violators, who had moved from Finland to the USSR territory. The brave border guard came into an unequal battle with them. Deadly wounded, he was able to block the way to the enemies.The Soviet government praised the hero’s feat. The outpost where the frontiersman served was given his name; he was forever enrolled in the lists of the outpost.
In 1928, by the decision of the Presidium of the All-Russian Central Executive Committee, the hero’s homeland was renamed Korobitsyno village, and Kurakinsky village council of Siamzhensky district was renamed Korobitsyno village.
On October 20, 1957, on the border of Sosnovsky and Vsevolozhsky districts of Leningradskaya oblast, on the place of the former USSR state border, where the border guard was fighting with violators, a monument to an obelisk was opened. The words are engraved with gold on the granite: “Here, on October 21, 1927, border guard Andrey Korobitsyn made a heroic feat defending the USSR border”.On August 26, 1966, the bust of the hero was installed in his homeland in the village Korobitsyno.In this connection, the RCPW club spends days of activity devoted to the hero Andrey Korobitsyn. It is a good opportunity to fulfill the established diploma.Diploma “Andrey Korobitsyn border outpost”.To get the basic diploma it is necessary to gain 100 points for work with RCPW club members on any allowed ranges, starting from 00:00 UTC on November 27, 2020. For communication with an RCPW club member on days of activity 5 points will be charged. In the future – 3 points. Repeated communications are counted on different EF (VHF) bands, on one band – different types of modulation (all types of DIGI are counted for one).Diploma “Andrey Korobitsyn First Degree Border Guard”.To get the 1st-degree diploma in the days of activity it is necessary to communicate with 25 members of the RCPW club on any allowed EF (VHF) ranges by any modulation. In the future, it is necessary to carry out communications with 50 members of the RCPW club. Repeated connections with one and the same club member are not counted for this diploma.
Diplomas are free and are issued electronically through the service https://hamlog.ru/ on the basis of uploaded logs of RCPW club members. Members of club RCPW receive the basic diploma at carrying out and loading on https://hamlog.ru/ 200 QSO and the diploma of 1 degree for 300 QSO or on the general bases. Both diplomas are given to SWL observers on similar conditions. The observers submit applications to the club secretary’s address  R7AO@mail.ruSourceСообщение RCPW Border Guard Radio Club Activity Days November 27 – December 6, 2020 появились сначала на PSKOV.

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SourceСообщение 2020 Amateur Radio Holiday Gift Guide появились сначала на PSKOV.

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In comments to the FCC, ARRL has argued that radio amateurs be allowed to continue shared operation in the 3.4 GHz band until 5G licensees who purchase the spectrum when the FCC puts it up for auction initiate incompatible operations. In its Further Notice of Proposed Rulemaking (<a href="https://ecfsapi.fcc.gov/file/1002214202488/FCC-20-138A1.pdf">FNPRM</a>) in WT Docket 19-348, the FCC had proposed to sunset the band for amateur radio in two phases, governed by when new licenses are issued rather than when the new licensees begin to use the spectrum. In the FNPRM, the FCC solicited comments on whether alternatives exist to its proposal.“Amateur activities further the public interest and should be permitted to continue on a secondary basis unless and until a new primary licensee is ready to occupy the spectrum in a preclusive manner,” ARRL told the FCC. “At a minimum, amateur operations should be permitted to continue indefinitely in the 3.3 – 3.45 GHz spectrum, where no new flexible licenses are under immediate consideration. The Commission could consider whether the registration or other mechanism similar to that found in Section 97.303(g) would facilitate avoiding interference.”Section 97.303(g) contains specific frequency-sharing requirements for the 2200- and 630-meter amateur bands. ARRL said its comments were without prejudice to its pending Petition for Reconsideration of the FCC proposal to delete the amateur secondary allocation from the entire 3.3 – 3.5 MHz band.ARRL noted that some 1,000 comments have been submitted by individual amateurs and amateur organizations at the initial stage of this proceeding. Those included one from the Emergency Communications Coordinator in the California Governor’s Office of Emergency Services, who wrote: “Over the years the State of California Governor’s Office of Emergency Services Public Safety Communications Tactical Communications Unit has utilized Radio Amateur Television product during fire operations to gather intel and monitor threats to communications sites being affected by fires and fire weather events… Part of the backbone of the [amateur radio television] system utilizes the 3-GHz spectrum, and due to heavy spectrum usage in the 1.2 and 5.8 GHz spectrum, the 3 GHz spectrum becomes very important for frequency diversity-supporting these networks…”As ARRL noted, “Amateurs often select the 3.4-GHz spectrum precisely because other spectrum choices are sub-optimum or simply not available. Amateurs also are only secondary users on most of the other spectrum suitable for similar purposes,” ARRL said. “Links must be carefully engineered because of that secondary status, which applies to most of the 2.4- and all of the 5.8-GHz bands available to amateurs. In many geographic areas, it is a misconception that the 3.4 GHz operations easily can be moved to other bands.”ARRL emphasized the importance of allowing amateurs to continue to use the 3.4 – 3.45 GHz portion in particular. “As stated by commenters during the initial stage of this proceeding, some of the equipment commonly used in this band for network linking cannot be re-channeled below 3.4 GHz,” ARRL said.ARRL pointed out that in many geographic areas it could be years before the 3 GHz spectrum is actually put into use by commercial users, and argued that amateur radio should be allowed to continue to operations on a secondary, non-interference basis as it has done for decades with federal primary users, until new uses actually begin, rather than when licenses are issued. <a href="https://qrznow.com/arrl-asks-fcc-to-allow-3-4-ghz-operation-until-spectrum-is-occupied/">Source</a>&#1057;&#1086;&#1086;&#1073;&#1097;&#1077;&#1085;&#1080;&#1077; <a href="https://pskovradio.club/arrl-asks-fcc-to-allow-3-4-ghz-operation-until-spectrum-is-occupied/">ARRL Asks FCC to Allow 3.4-GHz Operation until Spectrum is Occupied</a> &#1087;&#1086;&#1103;&#1074;&#1080;&#1083;&#1080;&#1089;&#1100; &#1089;&#1085;&#1072;&#1095;&#1072;&#1083;&#1072;…
Paying tribute to those who defended Moscow during the Great Patriotic War, the Moscow Regional Branch of the SRR, with the support of the Presidium of the SRR and the amateur radio portal HAMLOG.ru, spend days of activity of radio amateurs of the Moscow region, dedicated to the 79th anniversary of the Battle of Moscow, which became one of the turning points in the history of the Great Patriotic War of 1941-1945.All licensed radio amateurs of the world are invited to participate in the days of activity of radio amateurs of the Moscow region.Period of activity daysStart 00 h. 00 min. UTC 28 November 2020;Termination: 23 hours. 59 min. UTC 13 December 2020.Days of activity of radio amateurs of the Moscow region are held in memory of the military and labor exploits of the defenders of the capital of our homeland – Hero City of Moscow. The Days of Activity is held under the auspices of the Moscow Regional Branch of the SRR.As part of the Days of Activity, dedicated to the 79th anniversary of the defense of Moscow, the work of the memorial radio station RM41MB (“Battle for Moscow”) – Moscow region.The work period of the memorial radio station RM41MB:Start 00 h. 00 min. UTC 28 November 2020;Termination: 23 hours. 59 min. UTC 13 December 2020.&#1047;Accountable radiocommunications – two-way radiocommunications, carried out during the period from November 28 to December 13, 2020, on any amateur FM (including WARC) and VHF bands (using any type of passing TR, AU, MS, EME, IPS, etc.), any kind of work (CW, PHONE [SSB, FM, AM], DIGITAL [RTTY, PSK, FT8, etc.]), including radiocommunications through IPS are counted. Repeated radio communications are counted on other amateur bands and/or other types of work.Radios set by PHONE are counted on one band only once, regardless of the modulation type. Radios set by DIGITAL are counted on the same band only once, regardless of the type of work (RTTY, PSK, FT8, etc.) and/or speed (PSK31, PSK64, etc.). Radio communications installed on VHF bands conducted with the use of terrestrial repeaters (repeaters) are not counted.The participants of the Activity Days are awarded the electronic diploma “Battle for Moscow”. To obtain the diploma “Battle for Moscow” is necessary:to radio amateurs of Moscow and Moscow region to hold at least 79 bilateral radio communications with amateur radio stations of the world. An obligatory condition is to upload your hardware magazine, in electronic form, to the amateur radio portal HAMLOG.ru;the operators of the memorial radio station RM41MB to conduct at least 300 two-way radiocommunications;to other radio amateurs of the world to gain not less than 79 points for bilateral radio communications with amateur radio stations of Moscow and the region. Only those radio communications which are confirmed by objective data on the portal HAMLOG.ru are accepted for offset.The points for bilateral radio communications with amateur radio stations of Moscow and the Moscow region are calculated as follows:for radio communications with Veterans of WWII (regardless of their geographical location) – 15 points each;for radio communications with the memorial radio station R1941MB – 10 points;for radio communications with radio amateurs of Veterans of War Glory: Volokolamsk (MO-58), Dmitrov (MO-60), Naro-Fominsk (MO-75) and Mozhaisk (MO-73) – 2 points each;for radio communications with radio amateurs of Moscow region (RDA MO-xx) and Moscow city (RDA MA-xxx) – 1 point each.The points for two-way radio communications are doubled for radio amateurs NA, SA, AF, AS, and OC, as well as for radio amateurs of the Asian part of Russia, located in the ITU 21-26, 32-35 zones. The points for two-way radiocommunications, installed on VHF and 160 meters band, are multiplied by 4. For radio amateurs NA, SA, AF, AV, and OC, as well as for radio amateurs of the Asian part of Russia, located in areas ITU 21-26, 32-35 – by 6. For veterans of World War II and workers of the rear, the diploma is issued regardless…