LU-APRS : Mensaje: Newsletter from MODS.DK 06. Sep 2008

In this Edition, you will find a list of all the new & updated articles now on our site.

New articles.

Created: 10-08-2008 Drake TR-4
Subject: Noise elimination for Drake TR4CW
On the TR4CW please connect two grids on the speaker tube not for full anode (250V) only to stabile volt 150V. Noise is reducing and DX reception is i... Click here to view the article.

Created: 11-08-2008 Icom IC-R7000
Subject: SSB Modification for the ICOM IC-R7000 Series Receivers
by Graham Wiseman, VK5EU SSB Inteligibility for Icom IC-R7000 Users that search through noise all of the time probably will not know if their receiv... Click here to view the article.

Created: 12-08-2008 Kenwood TS-180
Subject: Crystal filters for TS-180S
Inputthe signalOutputthe signal Construction: The Filter to Crystal exemplified above, it uses 4 crystals of 8.830.0 KHz, in the positions HV an... Click here to view the article.

Created: 17-08-2008 Kenwood TS-820
Subject: KENWOOD TS-820S. Bizarre "Disruption" of the frequency, on display.
One bizarre defect appears on a set of Kenwood HF Transceiver TS820S. The fault: The display miss the "Unit Digit" only when the frequency passes to... Click here to view the article.

Created: 18-08-2008 Kenwood TS-940
Subject: TS-940S earlier activation on pa fan
MOD ON LPF UNIT (X51-1330-00) There is a comparator circuit on the LPF board used to turn on the PA Fan. Functions as follows: When transmitting .... Click here to view the article.

Created: 25-08-2008 Kenwood TR-9000
Subject: Reducing power in Kenwood TR9000 and many other old 2m transceivers
The European version from the TR9000 transceiver has no hi/low switch to reduce power for use with SHF transverters. The existing mods for reducing .... Click here to view the article.

Created: 03-09-2008 Kenwood TS-690
Subject: Low audio. RX good, TX good for TS-690
With the long time of use, it takes place to explosion of a capacitor of exit of sound c104 that is in series with L12. The original capacitor is 4... Click here to view the article.

Created: 11-08-2008 Other MISC
Subject: Input power 24/100/110/200/220 for JRC NRD-91, 92 and 93
On most ships the NRD serie from JRC would work on a power of 100 to 240 volts. To change the input power open the top and the bottom lit and look u... Click here to view the article.

Created: 29-08-2008 Other RCI-2970
Subject: MARS&CAP TX / RX Ranger RCI-2970 DX
The new Ranger RCI-2970DX now come with a small chip in the package with no reference to its use. If you pull off the top cover and look to the back... Click here to view the article.

Created: 31-08-2008 Other MISC
Subject: Reduce fan noise for Diamond GZV-4000
The power supply GZV-4000 from Diamond (5-15 V, 40 A) uses a fan which is rather loud and pumps more air through the unit than required for normal o... Click here to view the article.

Created: 02-09-2008 Other MISC
Subject: Service menu and silent mode for Furuno FA-150
To Enter the SERVICE Menu: Press the following buttons to access the service menu: [MENU] [DIAGNOSTICS] [FOR SERVICE] When prompted for a p... Click here to view the article.

Created: 03-09-2008 Other MISC
Subject: RU and PX Channels for Intek M-790
To gain the extra channels on the Intek M-790 it's very simple. Band RU = Export 400 Kanal AM/FM 4Watt (25.615Mhz-30.105Mhz Band A-L) Band... Click here to view the article.

Created: 19-08-2008 Yaesu VX-3R
Subject: Improve speaker and mic connections for Yaesu VX3R
Problem: For a while I noticed that the rx audio level varied considerably at the same volume setting, and sometimes disappeared altogether. A squee... Click here to view the article.

Created: 21-08-2008 Yaesu FT-847
Subject: Yaesu FT-847 4 Metre power & sensitivity mod
PLEASE NOTE THAT YOU MODIFY OR PERMIT MODIFICATION OF YOUR RADIO ENTIRELY AT YOUR OWN RISK. I ACCEPT NO RESPONSIBILITY OR LIABILITY FOR ANY LOSS, WH... Click here to view the article.

Created: 27-08-2008 Yaesu VX-7R
Subject: Special mod for vx-7r "programed chanels only"
Not documented feature for Yaesu VX-7R Turn on your VX-7R while holding down BAND key. Now your radio is in special mod ( programed chanels only). .... Click here to view the article.

Created: 02-09-2008 Yaesu FT-840
Subject: Low signal in RX - TX good FT-840
The problem was caused by atmospheric unloading. the sign of reception was very low, and the transmission was good. I checked all the thermistores n... Click here to view the article.

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: 31-08-2008 Kenwood TS-820
Subject: TS-820 (S)Alignment corrections
Here is a better method for aligning the TS820 series. Download the PDF file here. Updated 31-08-2008. Click here to view the article.

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Best regards
mods.dk

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Mauricio Gurini - LU7DR
North Patagonia DX Group www.grupodedx.com.ar
Mediterraneo DX Club # 191 www.mdxc.org
Email / MSN: mauridr@...
Bahia Blanca - Argentina
Skype: mauridr

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New articles.

Revised articles since our last newsletter.