I’m not in the habit of reposting other folks newsletters, at least not on a regular basis, but this web site from over in Germany, has consistently had the answers to my ham radio hardware questions. Their periodic newsletter isn’t so much a newsletter per se, as it is simply a summary of what new postings / updates had been done on their site since the last newsletter. I do highly recommend this site, and suggest that you sign up for their free newsletter if you think you might be looking for a manual or mod in the future.
The content is (c)1996-2009 by mods.dk website, and all content is their responsibility. Having said all that legal jargon, I’ll simply say if you don’t feel comfortable and qualified to make the mods they describe on your equipment, or if you are worried about voiding your warranty, get help. If you are technically challenged and barely know which end of a soldering iron to hold, or where to find Harbor Freight, don’t try to do it yourself, get help.
Now on with their July 2009 newsletter….
Dear Lee N5NTG, 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: 13-06-2009 Adi AR-247
Subject: ADI AR-247 Replacing RF Power module
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My ADI 247 became intermittent, with the RF output dropping off to zero after a minute of operation at full power. Eventually it would not operate o…
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Created: 19-05-2009 Alinco DJ-G7
Subject: Alinco DJ-G7 Cross Band Repeat
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Press and release the Function button. (FUNC) Press and hold the RPT/ENT button for 5 seconds. You will see a X in the upper left corner of the disp…
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Created: 27-05-2009 Alinco DJ-G7
Subject: Extended TX for Alinco DJ-G7T
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To open unit for 420-430 mhz and MARS operation remove battery, remove 2 long screws top 4 short screws middle and bottom, remove both knobs they are …
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Created: 11-06-2009 Alinco DJ-G7
Subject: Clip replacement/Swivel clip mod
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One of the first things I noticed about the beautiful new Alinco DJ-G7 was the belt loop/ clip when I saw it on the web site. I had a feeling I was g…
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Created: 24-06-2009 Icom IC-80
Subject: TX/RX Frequency expansion of IC-80AD/IC-E80D
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RX frequency coverage expansion Remove D6 on the LOGIC unit as shown in the illustration below. TX frequency coverage expansion Remove D4 on the LO…
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Created: 24-06-2009 Icom ID-880
Subject: TX/RX Frequency expansion of ID-880H/ID-E880
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RX frequency coverage expansion Remove D128 as shown in the illustration below.* * Cellular bands are blocked in the USA version (#05). TX frequenc…
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Created: 02-07-2009 Icom IC-92
Subject: Annoying sidetones for Icom IC-92
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Many people are annoyed that the sidetones when entering a DTMF code or transmitting 1750 Hz are very loud and can not be adjusted. I made a simple m…
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Created: 03-07-2009 Icom IC-92
Subject: Rising modulation level without touching maximum deviation
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The IC-92 has proper maximum deviation, but the mic sensitivity is a bit low, and especially for N-FM the modulation has not enogh pressure. This lead…
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Created: 03-07-2009 Icom HM-77
Subject: Work-around for a common failure for ICOM HM-77A
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These mics have a frequent failure mode where the radio is continuously keyed. The mic is obsolete and cannot be replaced. ICOM has, in at least one c…
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Created: 08-07-2009 Icom IC-U2
Subject: IC-52e TX & 12,5 kHz modfication.
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Objective: Enlargement of the TRX, rebuilding of the grid on 12.5 kHz Here first the Device in the open state. Besides, it is only about the front P…
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Created: 10-07-2009 Icom HM-36
Subject: Icom HM-36 Made in China Microphone modification
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This modification is very simple and improves the treble response from this microphone Remove the 3 screws at the back of the microphone Locate th…
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Created: 11-05-2009 Kenwood TS-850
Subject: Replacing the ALC DC-DC-Converter TS-850S
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It is well known, that the ALC swings up and down since there is an instability in the DC-DC-Converter. One change was to reduces the resistors. But …
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Created: 11-05-2009 Kenwood GENERAL
Subject: Replacement of cathode resistors in Kenwood hybrids
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All of the Kenwood hybrid transceivers from the original TS-520 through the TS-830S have resistors in the cathode circuit of the final amplifier that …
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Created: 20-05-2009 Kenwood TS-440
Subject: No On Air / Tune / Notch lights on panel
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There are some simple things that happens, that may ruin our day. This was one of that. A friend of mine who brought a TS-430 to repair, brought me h…
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Created: 30-05-2009 Kenwood TM-G767
Subject: To pass from the modality tuning to the modality channels memory
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In order to pass from the tuning to frequency to the modality of tuning to channels in memory, to extinguish the radius, to hold pressed key LOW and t…
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Created: 01-06-2009 Kenwood TM-G707
Subject: to pass from the modality tuning to the modality channels memory
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In order to pass from the tuning to frequency to the modality of tuning to channels in memory, to extinguish the radius, to hold pressed key LOW and t…
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Created: 09-06-2009 Kenwood MC-80
Subject: Audio Modification for the Kenwood MC-80 Desk Microphone
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The MC-80 tends to a muffled audio, especially when used with a VHF/UHF transceiver. With this modification, the audio is more comfortable and the re…
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Created: 16-06-2009 Kenwood TS-440
Subject: Kenwood TS440S Mod’s for weather over 30* C of ambiance.
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On the hot zone of the world is possible to change some parameter of the PA fan to maintain temperature down. The requirement was that to not stop ve…
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Created: 29-05-2009 Midland/Alan 220
Subject: Midland / Alan 220 TX/RX expand
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To add to the list of channels that already exist by default, with band plans: PL, PX, RU (400 ch), SW, SA, AU makes the following: turn the radi…
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Created: 03-07-2009 Midland/Alan 48-PLUS
Subject: Modification 40 ch to 400 am/fm for Midland Alan 48 Plus
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I have an modification preformd on my midland Alan 48 plus it’s the type wich is delivered in holland with 40 channels FM and AM switchable. I co…
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Created: 27-05-2009 Motorola OTHER
Subject: Change Serial Number
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read radio with Global Tuner Version R02.00.01 and than save it. don’t close it. open saved file with Hex Editor Software and change column…
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Created: 19-05-2009 Other MISC
Subject: To rise Albrecht AE-6890 promotes
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In this small article we are going to teach you to realize the necessary modification so that our boradcasting station Albrecht AE-6890 rises of poten…
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Created: 28-05-2009 Other MISC
Subject: Intek M-100 Plus
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Here is the file to show the new Intek M-100 Plus export activation Remove the solder link (LK2) rU 25615-30105 am/fm 4w now working PO 25610-30110…
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Created: 26-06-2009 Other MISC
Subject: Repairing a faulty KW-1000 HF linear
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The output was varying from full rated power occasionally to only a few Watts. There was a sound of sparking and the linear was generating much TVI in…
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Created: 27-06-2009 Other MISC
Subject: Hidden Commands for Ten-Tec Jupiter
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Beginning with Jupiter firmware revision 1.23 and onward, you have the following undocumented ALT + commands: ALT + this key Has this result: SWEE…
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Created: 29-06-2009 Other MISC
Subject: Tonal Quality of Transmitted Audio. Astatic – D-104 all models
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Techs, when DX=ing a sharp tonal quality in the transmitted audio will help make the Transmission much more readable. To accomplish this, Open base o…
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Created: 29-06-2009 Other MISC
Subject: Samlex SEC 1223 PSU, switch mode noise reduction
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In my summer holidays June 09 I experienced when using my Samlex SEC 1223 PSU and FT-857D to my daily QSO with friends at 3724 kHz several irritating …
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Created: 03-07-2009 Other MISC
Subject: ALC modification for Elecraft K3
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MCU firmware release from 1.99 with DSP firmware release from 1.76 provide the capability to use external, negative-going ALC voltage to reduce the t…
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Created: 09-07-2009 Other MISC
Subject: Modify / repair fan on Watson PSU
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The fan on my Watson w-25am PSU stopped working last week, the fault was due to a component failure. Remove the cover – above the fan attached to …
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Created: 10-07-2009 Other MISC
Subject: Using an External Speaker for Grecom PSR-300
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The headphone jack on the PSR-300 is attenuated so as not to damage one’s hearing. Unfortunately, when a non-amplified speaker is attached, this a…
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Created: 05-05-2009 Yaesu FT-747
Subject: Make an
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Greetings to all hams. This amendment make an available rear plug (+13.8V) become audio input frequency to the style of “AFSK” on other rigs. Materi…
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Created: 02-06-2009 Yaesu FT-2000
Subject: Roofing filter mod, performance ehnacement mod
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Another roofing filter modification for Yaesu FT-2000/FT-2000D. Download/view the complete article.
Click here to view the article.
Created: 02-06-2009 Yaesu FT-2000
Subject: RX/TX expanded audio mod (50 – 4000 Hz.)
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I just found out that the FT-2000 is capable of a transmit bandwidth of 50 Hz to 4000 Hz (4Khz). For those who want to take advantage of the full tran…
Click here to view the article.
Created: 03-06-2009 Yaesu FT-3000
Subject: Expand TRX for Yaesu FT-3000
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I work today on my FT-3000 and i want to expand the TRX. On my version is only one combination workin, because there is no green wire to cut. This wi…
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Created: 03-06-2009 Yaesu VX-7000
Subject: extended Rx TX range for Vertex VX-7000
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open programming software as follows: ce27b-f when prompt password, input ansho-bango !now you can write and adjust any frequency that VCo can supp…
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Created: 06-06-2009 Yaesu FT-920
Subject: DRM Receive Conversion for FT-920
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This Conversion describes the addition of DRM (Digital Radio Mondiale) receive capability with the use of an additional PC and soundcard. Very high si…
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Created: 11-06-2009 Yaesu FL-7000
Subject: Repair of Yaesu FL-7000 RX signal dropouts
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Problem: When FL-7000 is in operate mode, after switching to RX , RX signal drops 10-15db and more. After switch off the PA and short TX, RX operatio…
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Created: 14-06-2009 Yaesu FL-7000
Subject: How to change scale lamps Yaesu FL-7000, fitting lamp
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How to change the signal lamps in Yaesu FL-7000 and which lamps are best fitting. The problem happens 1 time/2years: The display is dark, esp. the …
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Created: 28-06-2009 Yaesu FT-757
Subject: Control power output in SSB mode using for Yaesu FT-757GX
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To use the “Drive” knob on the front panel in SSB mode install the following mod: Remove the lower cover Put the radio upside down, front side…
Click here to view the article.
Created: 29-06-2009 Yaesu FT-450
Subject: Power increse for Yaesu FT-450
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Cover for Transmit is Speaker, Side.(top). Remove Speaker cover, Install Watt Meter – With Antenna installed. Look for (6) Small Pots. TC 5400, VR540…
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Created: 10-07-2009 Yaesu FT-840
Subject: USB/LSB IF shift correction for Yaesu FT-840
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You may notice on your radio, that when you switch between USB and LSB modes, the background audio is different (also applies for voice calls). Many …
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Created: 10-07-2009 Yaesu FT-817
Subject: DRM reception, using internal VOX for data jack, connection of mini mic Icom HM-46
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For receiving DRM transmissions (Digital Radio Mondiale) and for SDR experimentation (Software Defined Radio) with a PC soundcard the IF of 455 kHz h…
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: 20-06-2009 Icom IC-207
Subject: Icom IC-207H, Distorted Audio from HM-98 Mic
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Some HM-98 DTMF Mic’s may suffer from Distorted Tx Audio. This is caused by too much mic gain. To lower the gain by 10dB, change R40 in the hand …
Click here to view the article.
Updated: 16-06-2009 Icom IC-706MKIIG
Subject: Activating the fan also in receive mode
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Download the article activating the fan also in receive mod in PDF (177 Kb).
Click here to view the article.
Updated: 24-06-2009 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…
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Updated: 10-07-2009 Kenwood TM-D700
Subject: Cross band mod for Kenwood TM-D700
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After a lot of frustration to do the modification from Kenwood, to make my D700 sound nice when used for X-band link- I decided to try and help others…
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Updated: 24-06-2009 Yaesu FT-950
Subject: FT-950 DSP firmware v11.29 update.
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You will notice the difference immediately. WARNING: You perform this update at your own risk. I am not and will not be held responsible for any pro…
Click here to view the article.
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mods.dk
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