Dear Fellow Hams! Just in case you were unaware of this free source of information about ham radio hardware “fixes”, I chose to share this recently received electronic newsletter from www.mods.dk to which I subscribe.
While the site is hosted in Germany, the site is written in English. I’ve found lots of hard to find manuals for obscure radios, or current radios. And if you wanted to modify a radio, but didn’t know how, they usually have the instructions. Of course, I’m not trying to encourage anyone to make illegal mods, or to use their transmitter in an illegal fashion. But there are legit reasons for being able to receive or transmit out of what was “normal” when a rig was built, such as the 60 meter band that was recently opened for hams to use (few years ago). Many older HF rigs won’t go there without a mod, like the ICOM 706MKII-G, etc.
Anyway… Here is the newsletter I just received today. If you find it interesting, please visit their website and sign up for your own copy. It only comes out every 2 or 3 months.
Dear Lee Besing, this is the mods.dk newsletter.
In this Edition, you will find a list of all the new & updated articles now on our site.
New articles.
| Created: 01-02-2009 Alinco DJ-175 | |
| Subject: Mars/Cap modification for Alinco DJ-175 | |
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Remove the antenna and battery. Remove the dial knob, unscrew the 2 screws on the back bottom of the radio. Remove carefuly the main unit fr… Click here to view the article. |
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| Created: 05-02-2009 Alinco DR-620 | |
| Subject: Alinco DR620 high power jammer repair note | |
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Hello ham radio friends, I got this Alinco DR620 from a fellow ham with a big smile. “you won’t be able to fix this one” he said, “it is kind o… Click here to view the article. |
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| Created: 20-04-2009 Alinco DR-130 | |
| Subject: RX Expanded RF 130MHz ~ 174MHz for Alinco DR-130T | |
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Remove Top Cover Remove CPU Unit Side View CPU Unit Side B(Back) Find W1 MACL04AA Thin Solder Wire Cut W1 (RX Modifications 130~174MHZ… Click here to view the article. |
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| Created: 31-01-2009 Icom IC-7700 | |
| Subject: Tuning encoder failure for Icom 7700 | |
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I have recently suffered a total failure of the tuning encoder.i.e. the potentiometer looking device behind the tuning knob. Icom rectified this ver… Click here to view the article. |
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| Created: 17-02-2009 Icom IC-R71 | |
| Subject: ICOM R-71A Processor Noise Cure | |
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I’ve bought my ICOM R-71A approximately 20 years ago. I use the radio mainly as a detector in making heterodyne type frequency measurements, pa… Click here to view the article. |
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| Created: 22-02-2009 Icom IC-7200 | |
| Subject: Icom IC-7200 DG2IAQ-Mods | |
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The famous ICOM IC-7200 is a great transceiver and I like it very much. As announced in several forums I realized that it has some (few) weaknesses o… Click here to view the article. |
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| Created: 01-03-2009 Icom IC-7200 | |
| Subject: Using headsets on an IC-7200 | |
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As I connected a PIEZO HB-46 handset to my IC-7200 I recognized a “warbling” SSB modulation while working at the antenna. On the dummyload everything … Click here to view the article. |
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| Created: 02-03-2009 Icom IC-781 | |
| Subject: Stinky IC-781 | |
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I have a fairly recent serial number (02729) IC-781 that developed an oder that was somewhere between rotting fish guts and a bad underarm smell. Do n… Click here to view the article. |
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| Created: 11-03-2009 Icom IC-7700 | |
| Subject: Expansion of the 40 m band only | |
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Click here to view the article. |
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| Created: 14-03-2009 Icom IC-7800 | |
| Subject: IC-7800 as remote, (Ghost image 37khz below center freq. Technical service bullitin). | |
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You can set your 7800 so that you can access it remotely using a computer for receive and transmit, just as if you are using the radio itself. It inv… Click here to view the article. |
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| Created: 25-03-2009 Icom IC-756PRO | |
| Subject: ICOM IC-756PRO: Excessive or Unusual Receiver Noise | |
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If your IC-756PRO’s receiver has lots of noise, with crackles and sweeping heterodynes, especially noticeable on AM, it may be due to a faulty ele… Click here to view the article. |
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| Created: 28-03-2009 Icom IC-756PRO3 | |
| Subject: ICOM IC-756PRO3 modification | |
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Since late 2006, I have been a very satisfied owner of an IC-756PRO3. During the time, I have observed a smaller irritating thing – the surface tempe… Click here to view the article. |
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| Created: 03-04-2009 Icom IC-7600 | |
| Subject: IC-7600 general coverage Transmit | |
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Remove top and bottom Covers an the Handle. Remove the 4 screws (2 on each side) holding front panel at the main chassis. Carefully remove the 4 Con… Click here to view the article. |
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| Created: 18-04-2009 Icom IC-7000 | |
| Subject: Fan mod, how it should be done for IC-7000 | |
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As many of you IC-7000 owners know, the rig can become fairly hot, especially at the top left side, where the control unit (and DSP) is located. That… Click here to view the article. |
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| Created: 26-04-2009 Icom IC-207 | |
| Subject: Power output failure in IC-207H | |
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No power output in Icom IC207H (and many other transceivers who use RF modules) This is a very common failure. Today a friend of mine came to my hous… Click here to view the article. |
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| Created: 04-02-2009 Kenwood TS-2000 | |
| Subject: TS-2000X 10.695 MHz IF output for SDR | |
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Few years ago, i made an compact (8 components) and usefull 10.965 MHz IF output for SDR use. We used it for EME work (PI9CAM) and also for al my micr… Click here to view the article. |
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| Created: 10-02-2009 Kenwood TH-K2 | |
| Subject: Kenwood TH-K2 Euro version | |
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The combination of diodes of TH-K2 in **euro version**.For 144-146 MHz and Automatic Repeater offset 145.600-145.7875 -> put diodes in position… Click here to view the article. |
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| Created: 19-02-2009 Kenwood TM-255 | |
| Subject: Modification of display lights on KENWOOD TM-255E | |
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The KENWOOD TM-255E is originally equipped with tiny light bulbs to light up the display. However as time goes by, those light bulbs will sooner or la… Click here to view the article. |
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| Created: 27-02-2009 Kenwood PS-50 | |
| Subject: Noisey fan Kenwood PS-50 | |
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My PS-50 was new in 1990 and I bought it shortly after from my friend KA8WHO. I traded in my TS-440 for an Icom IC-746 in 1999 and kept using the po… Click here to view the article. |
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| Created: 06-03-2009 Kenwood TS-2000 | |
| Subject: TS-2000 Detailed Fan Modification with Photos | |
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27 February 2009 Bob Armstrong K0BT The fan in the TS-2000 switches between off and full speed every few minutes. A simple modification will make … Click here to view the article. |
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| Created: 08-03-2009 Kenwood TK-3201 | |
| Subject: Antenna mod for Kenwood TK-3201 | |
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If You want to use a better antenna on your TK-3201 Radio, you only need to buy the following original Spareparts from Kenwood. Kenwood KRA27M UHF A… Click here to view the article. |
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| Created: 15-03-2009 Kenwood TS-2000 | |
| Subject: Solution for 1 comm cable in digimodes for TS-2000 | |
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As found out TS2000 needs 2 comm cables for digimodes because cat-TX -command accepts input only from MIC-connector. That’s why you need second co… Click here to view the article. |
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| Created: 18-03-2009 Kenwood TK-708 | |
| Subject: Programming Kenwood tk-708 | |
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To program a tk-708, make sure jumper in on ch 8, hold ctcss = sel and turn the radio on and this will let you program the frequencys. To program sca… Click here to view the article. |
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| Created: 31-03-2009 Kenwood TM-D700 | |
| Subject: Invalid time in TNC menu for Kenwood TM-D700A/E | |
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If your TNC clock shows an invalid time, e.g. 29:34 etc. the you just have to press and hold down the Rev (F3) And Low (F4) keys together whilst pres… Click here to view the article. |
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| Created: 04-04-2009 Kenwood TS-940 | |
| Subject: Kenwood TS940 repair notes: Low power output and low sensitivity | |
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This was one of the more difficult repairs I ever did and I know lot’s of other TS-940 radios are more or less suffering from the very same sympto… Click here to view the article. |
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| Created: 08-04-2009 Kenwood R-2000 | |
| Subject: Kenwood R-2000 Expanded LW coverage | |
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Hi, I decided to snip D67 on the Function knob PCB today & guess what my R-2000 now goes down as far as 100khz instead of 150khz, I know theres not … Click here to view the article. |
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| Created: 12-04-2009 Kenwood TS-480 | |
| Subject: Extended function for Kenwood TS-480HX/SAT | |
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Download Kenwood TS-480HX/480SAT extended functions. |
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| Created: 25-04-2009 Kenwood TM-V71 | |
| Subject: Adjustment/Setup Mode for TM-V71E | |
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This has only been tried on the Kenwood TM-V71E here is how its done. Short out pins 3 and 6 of the data connector on the back of the radio. Power on… Click here to view the article. |
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| Created: 26-04-2009 Kenwood TS-680 | |
| Subject: No transmit and low receive gain fault for TS-680S | |
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I have traced a fault which causes the TS680S to have no transmit in any mode and also no S meter deflection on received signal levels, plus the recei… Click here to view the article. |
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| Created: 19-03-2009 Midland/Alan 95 PLUS | |
| Subject: 400 Channel AM Midland 95 Plus | |
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Open Radio, removing 2 screws behind battery compartment 2 screws at top and remove single screw on bat cover housing. Holding radio face down top up… Click here to view the article. |
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| Created: 08-02-2009 Other MISC | |
| Subject: Ameritron AL-1200 Surge Suppression and Relay Modification | |
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W7MY Greg Chartrand 2/5/2009 HISTORY I have owned an AL-1200 for 10 years and had had no problems with it until recently, (Jan. 2009). Just as I p… Click here to view the article. |
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| Created: 09-02-2009 Other MISC | |
| Subject: Sound Card Interfacing for RTTY, PSK31, and SSTV | |
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Who needs a collection of interface connections to choose from when having a desire to use the Soundboard in their computer to provide capability for … Click here to view the article. |
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| Created: 24-02-2009 Other NRD-525 | |
| Subject: Add a BF DSP filter into the JRC NRD525 receiver | |
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The electronic Kit necessary can be bought here http://www.artra-qrp.com/filtre_bf/filtre.html First you must modify it as in this schema (in … Click here to view the article. |
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| Created: 04-03-2009 Other FS-1503 | |
| Subject: Secret menu for adjustments FURUNO FS-1503 | |
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Push and hold ch key and turn on go to menu 9999 and press ch key and digit 1503. Now you have the completely menu for adjustments. |
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| Created: 05-03-2009 Other FS-1503 | |
| Subject: Free all bands and modes FURUNO FS-1503 | |
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For free all bands and mods first you must go to the secret menu and them check this parameters. First while push ch key turno on them go to menu 999… Click here to view the article. |
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| Created: 21-03-2009 Other MISC | |
| Subject: Modifications for Team Electronics – Roadcom-FS | |
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Opening up the radio with the keys come to us there are 4 jumper on the bottom right next to the dissipated strength … jp2 have signed … 5th so: …. Click here to view the article. |
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| Created: 29-03-2009 Other MISC | |
| Subject: LOW COST PSU repair | |
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By Pedro M.J. Wyns ON7WP-AA9HX Or how to get exploded Taiwanese devices back to work using European components. This article applies to several bran… Click here to view the article. |
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| Created: 30-03-2009 Other MISC | |
| Subject: Emotator 747 Overhaul | |
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Here is an article on maintaining Emotator 747 rotator. Download Click here to view the article. |
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| Created: 27-04-2009 Other MISC | |
| Subject: Roger beep mod for Texas Ranger TR 696f SSB | |
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The Texas ranger 696f SSB base radio does not come with a roger beep, here’s the mod it’s already in there just hook it up…. Remove cover f… Click here to view the article. |
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| Created: 30-04-2009 Other MISC | |
| Subject: Repair and alignments on the Satellite 700 | |
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Recently I had some troubles to hear clear signals on AM and SSB in more than one Shortwave Band. My first concerns are some bad solder or a lack of … Click here to view the article. |
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| Created: 11-03-2009 Radio Shack OTHER | |
| Subject: How to improve tonal quality Radio Shack Speaker-mic 19-310 | |
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This was one of the best speaker-microphones ever made, in my opinion. It works well with Realistic H/T’s, of course, and equally well or slight… Click here to view the article. |
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| Created: 22-04-2009 Standard C-408 | |
| Subject: Standard / Hora C408 Modification paper. | |
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The Hora C408 and Standard C408 are the same radio. Only the branding is different. The modification will allow wideband Tx/Rx and requires one diode … Click here to view the article. |
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| Created: 05-02-2009 Uniden HR2600 | |
| Subject: President Lincoln repair notes: no PTT | |
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Dear fellow HAM’s, or CB friends, A common problem with the fine President Lincoln, or the Ham radio flavour Uniden HR-2510 is having TX on the d… Click here to view the article. |
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| Created: 04-03-2009 Uniden 2830 | |
| Subject: No receive audio fault guide Uniden 2830 | |
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I have traced the source of a no RX audio fault on my Uniden 2830 and would like to share it with the fellow Amateurs. The radio S meter and RX/TX fu… Click here to view the article. |
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| Created: 20-03-2009 Uniden BCT-15 | |
| Subject: BCT-15 Frequency Counter | |
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To use your BCT-15 As a frequency counter: Hold down buttons “Hold, 3 & 0” while powering up the scanner. Next you can select which range of frequen… Click here to view the article. |
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| Created: 03-04-2009 Uniden BC-780XLT | |
| Subject: Use Skype to Share Scanner Audio via Internet | |
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Not everybody has a scanner; and – just now – fewer may have the spare cash needed to buy one. This article suggests a way to give others the chance … Click here to view the article. |
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| Created: 02-02-2009 Yaesu VX-8R | |
| Subject: Bluetooth headset for Yaesu VX-8R | |
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I purchased the BU-1 bluetooth board despite the fact that the current BH-1 or BH-2 headsets are not compatable. I purchased a Sony Ericsson HBH-DS98… Click here to view the article. |
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| Created: 02-02-2009 Yaesu VX-5R | |
| Subject: Yaesu FNB-80Li Battery Repair | |
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(Used with VX-7R, 6R and 5R) When one of my spare battery packs for our YAESU VX-7R suddenly stopped working (actually it was a cheap substitute from… Click here to view the article. |
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| Created: 02-02-2009 Yaesu VX-6R | |
| Subject: Yaesu FNB-80Li Battery Repair | |
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(Used with VX-7R, 6R and 5R) When one of my spare battery packs for our YAESU VX-7R suddenly stopped working (actually it was a cheap substitute from… Click here to view the article. |
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| Created: 02-02-2009 Yaesu VX-7R | |
| Subject: Yaesu FNB-80Li Battery Repair | |
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(Used with VX-7R, 6R and 5R) When one of my spare battery packs for our YAESU VX-7R suddenly stopped working (actually it was a cheap substitute from… Click here to view the article. |
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| Created: 04-02-2009 Yaesu FT-290 | |
| Subject: A new life for the Yaesu FT-290R | |
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The FT-290R is an old amateur radio workhorse which was a very popular transceiver during the 80s. It is a 2-metre multimode portable which can run… Click here to view the article. |
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| Created: 11-02-2009 Yaesu FT-897 | |
| Subject: Latest Version Power Amp PCB for Yaesu FT-897D | |
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Yaesu has changed the finals in FT-897D by using most advanced and much superior performer Power Transistors. Find below their Pictures.The pict… Click here to view the article. |
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| Created: 25-02-2009 Yaesu FT-817 | |
| Subject: Improving receiver performance for Yaesu FT-817 | |
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The source of receiver noise is 2nd IF amp which is placed after the 455kHz IF filters. So, you can replace R1339 10k by 1k resistor and this will re… Click here to view the article. |
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| Created: 01-03-2009 Yaesu FT-980 | |
| Subject: Slower agc yaesu ft-980 | |
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I remarked that the slow agc on this rig in slow position was too fast, the needle is moving like a antenna whip at 60 mph hihi. So i decided to pu… Click here to view the article. |
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| Created: 02-03-2009 Yaesu FT-411 | |
| Subject: Increase Tx and Rx Signal Yaesu FT-411E | |
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To increase the transmit and receive signal of the FT-411E make and attach one alligator clip and wire to the antenna. To make this you get an allig… Click here to view the article. |
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| Created: 05-03-2009 Yaesu FT-747 | |
| Subject: LED lighting for your FT-747GX | |
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Here is a simple mod which will brighten the front panel of your 747, cut power consumption and eliminate the pesky bulb burnout issues with older rig… Click here to view the article. |
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| Created: 15-03-2009 Yaesu VX-8R | |
| Subject: VX-8R TX modification | |
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power on SET mode #21 CWID CWID (ON) push “MODE” turn DIAL to A, push “MODE” turn DIAL to H, push “MODE” repeat 6-7 … Click here to view the article. |
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| Created: 30-03-2009 Yaesu VX-2R | |
| Subject: Yaesu VX-2 repair notes | |
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By Pedro M.J. Wyns ON7WP AA9HX Or what happens if you take your handheld everywhere with you, including the toilet, where it does not survive a 1 met… Click here to view the article. |
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| Created: 21-04-2009 Yaesu VX-8R | |
| Subject: Stereo Bluetooth Headphones with VX-8R | |
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If you are eager to use a more comfortable set of stereo headphones with a Bluetooth equipped VX-8R HT – rather than the cumbersome Yaesu BH-1 headset… Click here to view the article. |
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Revised articles since our last newsletter.
Note, sometimes it can be difficult to see the changes since the update can be a little correct in the text, but sometime the update can be a new picture to the existing article.
| Updated: 08-04-2009 Icom IC-746 | |
| Subject: ICOM IC-746 & IC-756 Series: Damage Due To RF-Overload | |
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In my experience, the Icom IC-746/756/PRO-series are quite susceptible to RF overload and electrostatic discharge (ESD). A common failure is the HRX/R… Click here to view the article. |
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| Updated: 08-04-2009 Icom IC-756 | |
| Subject: ICOM IC-746 & IC-756 Series: Damage Due To RF-Overload | |
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In my experience, the Icom IC-746/756/PRO-series are quite susceptible to RF overload and electrostatic discharge (ESD). A common failure is the HRX/R… Click here to view the article. |
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| Updated: 08-03-2009 Kenwood TS-870 | |
| Subject: TS-870 CW-monitor audio mod | |
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—– Original Message —– From: VSE, Ext18 To: Sent: Wednesday, September 11, 2002 9:31 AM Subject: [CQ-Contest] TS-870 (S) > Hi Bob > >… Click here to view the article. |
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| Updated: 19-04-2009 Kenwood TS-180 | |
| Subject: Crystal filters for TS-180S | |
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Inputthe signalOutputthe signalConstruction: The Filter to Crystal exemplified above, it uses 4 crystals of 8830.000 KHz ( 8,83 MHz), in the po… Click here to view the article. |
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| Updated: 12-03-2009 Kenwood R-5000 | |
| Subject: Fix keypad bounce mod for R-5000 | |
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A Practical and Simple Keypad Bounce Filter for the Kenwood R-5000. Download Note that PDF file has been update 12 march 2009. Click here to view the article. |
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| Updated: 05-03-2009 Other FS-1503 | |
| Subject: Enabling LSB on the Furuno FS1503 SSB Marine Xcvr | |
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To enable LSB on the Furuno Model FS1503 radio do the following: You need to change system parameter 9914 to “0” to enable LSB capability. System pr… Click here to view the article. |
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| Updated: 22-02-2009 Yaesu VX-7R | |
| Subject: VX-7R TX and RX | |
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Model- EXP/B2 Europe All jumpers open. What you get TX – 40~222 Fm and Air band- yes 300~550 RX – As the manual says.What you lose: |
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| Updated: 22-02-2009 Yaesu VX-2E | |
| Subject: Frequency expansion for VX-2E | |
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This is how expand RX and TX range of Yaesu VX2E. New range: TX: 120 to 220 MHz, and 300 to 500 MHz. RX: 0,5-137, 137-174, 174-420, 420-470, 470-800… Click here to view the article. |
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mods.dk
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