KLM Multi-2700

Also known as

FDK Multi-2700

European Model

Frequency range: 144-146 MHz
Mode: All-mode including AM
RF Power output: Hi: 10 W, Lo: 1 W
Voltage: 13.8 VDC or mains
Current drain:

RX: ? mA, TX: ? A

Impedance: 50 ohms, SO-239
Dimensions (W*H*D): 12.3" x  4.27" x 10.17"
Weight: 14 Kg
Manufactured: Japan, 1979-19xx
Other: RX: 10 m for Oscar operation

American Model 

Frequency range: 143.00 - 148.99 MHz
Mode: All-mode including AM
RF Power output: Hi: 10 W, Lo: 1 W
Voltage: 13.8 VDC or mains
Current drain:

RX: ? mA, TX: ? A

Impedance: 50 ohms, SO-239
Dimensions (W*H*D): 375*130*310 mm
Weight: 30.86 lbs
Manufactured: Japan, 1979-19xx
Other: RX 10 m for Oscar operation
Extras: RX 432 Mhz for Oscar operation

Note: Appears only 50 made (See below)

Rx Preamp mentioned as extra in operators


7/3/07 - UPDATE!

Today I received a copy of a service manual (With some modifications as well) from K8ATQ!  He was great and furnished it to me in print and has scanned it as well.  PLEASE do NOT contact him for information.  I will try to give out the information as I have for the last 3 years and will continue to do so.  The service manual I have yet to break down into sections.  Some email providers will accept up to 10 meg files and some will not.  I will need to know this from you.  Please read "ALL" of this page and the part about what you may want and how to ask for it.

10/24/04 - My KLM Project

A few days ago I acquired the KLM Multi-2700.  Note it has FDK Multi-2700 on the rear.  It is serial #08072.  Appears the KLM was made by FDK.  Upon acquiring it I found a few problems.  However, information on the internet was less than sparse.  So I started e-mailing anyone who even mentioned they had owned one or do own one.  I was then able to gain more information.  By the way it will tune from 143.00 to 148.99.

Basically this radio was one of the first satellite radios if not the first.  It is not the easiest to use on satellites but it rather unique.  It is really designed for Mode A.  2 M USB up and 10 M USB down.  I found the 10 M side does receive.  Originally all modes work well on The 2 M side except FM simplex.  This problem has since been fixed.  Appears a trimmer capacitor was dirty.  After a little tuner cleaner and some tweaking it seemed to solve the problem.  At least the crystal was not bad.  Also I could move it to the A or B slot and it would work fine.  Now the FM Center meter is malfunctioning but I'm sure I can resolve it in time as well.   Thanks to W9NET I was able to acquire a schematic and KB7ADL for an operators manual.  Also thanks goes out to W1EU for his information.   Also I'd like to thank KA4CMT and KG4MSR for their help in figuring this out.  I still may order the service manual unless I can find one in typical ham fashion. .

Upon investigation of the radio I found it had a N connector on the rear in addition to the 2 M SO-239 and the 10 M SO-239.  Most folks thought I was crazy but it was there as you can see in the picture.  It was installed next to the 10m SO-239 with a toggle switch. Please click on picture to make it larger.

KLM Back.JPG (143176 bytes)

Upon looking inside I discovered a box in the space where a preamp was to go per the operators manual.  However, I have discovered it is not a preamp.  After tracing the toggle switch with wires attached I find they went to this box in the preamp empty space, the toggle switch and the din plug for the 10 M converter. . Ultimately I discovered it is a 432 converter.  The Toggle switch allow me to switch between 10 M RX and 432 RX.  Depending on the frequency you might have to tune the 440 frequency with the VFO versus the digital display.  It acts quit different than the 10m receive.  It appears to be inverting which is what I would expect.  My ultimate question was did KLM make a 440 converter?  The converter box has a KLM sticker on it.  The inside boards appear to be printed circuit boards. There is no way to take it apart short of a large soldering iron.  There are also holes in the side to make adjustments. I have no idea what purpose they serve at this time. Please see photos below.  Please click on them to make them larger.  Sorry as some pictures are less than perfect but I'll try to work on that when I have more time.  You will note a lot of parts with Mexico on them. .

KLM 440 A.JPG (187236 bytes) KLM side view.JPG (136597 bytes) KLM 440 inside A.JPG (110807 bytes) KLM 440 Inside.JPG (89309 bytes) KLM inside B.JPG (72197 bytes) KLM 440 outside.JPG (137352 bytes)

I also have a copy of the operator manual scanned but it is 16.400 KB zipped. I do have it broke down page by page if needed and/or in sections .  I also have the schematic scanned.  It is in PDF format and it and it is in four jpg pages of which you can print and tape together.  Zipped it is 4,815 KB.  Also you will find the Oscar converter schematic in the manual and a nice block diagram.  Please e-mail if you would like any of these. 

NOW does anyone have any idea where this 432 converter came from?  It will tune from 432 to 435.800 so far. I have not tried others as I just tried the Satellite portions.  I see no reason for it not to.  I do not know how sensitive it is.  On SSB it is quite difficult to tune and sometimes a little raspy for lack of a better word.  That could be operator error as well.  FM tunes rather well.  The search goes on!

Any and ALL help and/or suggestions would be appreciated.

10/27/04 - KLM Radio Update from K6MYC. 

 I received an answer to my e-mail to Mike Stahl, K6MYC.   He is not definite that the KLM Multi-2700 is the first satellite radio but most likely is.  As for the 432 converter he states KLM did not make one that he remembers.  Any converter with a 28MHz IF will work.  He indicated Down East Microwave, Ramsey and some others have converters with a 28MHz IF.   He has indicated another Ham to contact who used to repair the KLM units. I will see if I can locate him and maybe he can shed more light on this radio. 

10/30/04 - E-mail  from Jim Eagleson, WB6JNN

Can't help much on the Multi-2700. The only 70cm converter was one that I designed that converted Mode J (2M up, 435 down) to track on the Japanese satellite. It was not full duplex but I was able to make some contacts using this equipment during my testing of the converter. Only a few (50, I think) were actually made and sold. You can use any information on my website as long as you provide the source.


Aside from the remark above, I have no comments about the 2700 except that, like all radios of that era, it really needs to be tuned up using a spectrum analyzer. 


You may see the website of  WB6JNN at  http://members.surfbest.net/eaglesnest

11/12/04 - E-mail from Jim Eagleson, WB6JNN (Note this e-mail has been modified somewhat to eliminate unnecessary rhetoric)


I asked about problem with FM Simplex and he responded: 

I can't remember what the problem might be on FM. It does have another signal generator for FM... a direct modulated PLL as I recall that is

injected at the IF frequency (10.7?). I don't have a manual for the unit readily available at the moment.


I asked who comprised KLM and he responded: 

KLM = Ken (Holliday), Leland (Mike Stahl), and Mel (Farrer). 


More info: 

I don't think the preamp was anything to write home about so KLM never imported them but suggested buying a good, low noise preamp from other sources instead. The front end of the 2700 was subject to IMD and Crossmod anyway (there was actually a bipolar transistor in front of the IF filter!) so that a preamp should be a lower gain unit and switchable. KLM amplifiers, of course, could be purchased with a 2dB noise figure, JFET preamp and that is what most users would use. If you don't have an amplifier, you probably don't need the preamp anyway, eh? The East Coast link was to a provider in Milwaukee that I don't use since moving back to CA. Some of the stuff is on http://members.surfbest.net/eaglesnest and I will be putting some up at a later date on that site.


Jim Eagleson


Comments from Jim Eagleson, WB6JNN, from his website at: http://www.qsl.net/wb6jnn/middle.htm

KLM Electronics

   Fortunately, about the time of the downward spiral at SBE, I had contact with KLM Electronics through my VHF activities on Ham Radio. I had discovered a prototype, Two Meter Single Sideband radio in the back stockroom at SBE which they had considered as a potential product but had rejected as having insufficient market interest for their Amateur Radio line.

   SBE had always been ambivalent about their ham line during the period I worked for them. Clearly the numbers weren't anything like the numbers in the CB market and the profit margin was far inferior to the Commercial Two Way business, as well.

   I asked SBE if I could show the unit off at the W6GD VHF/UHF Society meeting at the SLAC (Stanford Linear Accelerator) facility near Stanford University and it generated quite a bit of enthusiasm. In fact, Mike Staal, W6MYC and Mel Farrer, K6KBE and a couple of other Bay Area hams worked me mobile from Palo Alto all the way back to my home in Watsonville.. some 45 miles through the Santa Cruz Mountains across the winding pass of Highway 17.

   Since SBE wasn't interested in marketing this transceiver, KLM approached its maker, Belcom, and changed the name from Liner 2 to the ECHO II. This, and the ECHO 70, became KLM's entry point into the VHF/UHF transceiver marketplace.

   "ECHO", of course, referred to moonbounce echoes, since both Mike and Mel originally got into the ham antenna business primarily due to their moonbounce activities. These relatively compact, solid state mobile units seemed to offer them a natural extension of their product line.  The only near competition was the Gonset Sidewinder but it was inferior in many ways and was no longer available, anyway.

   As KLM's business was expanding into transceivers with the introduction of both the ECHO series and their recently acquired Multi-2000 and Multi-2700 multimode, 2 meter transceivers, it turned out that there was an opening in the service department about the time SBE was slowly fading into the sunset due to the CB disaster.

   I made the move.

   At KLM we had a variety of products mostly related to Amateur Radio. The initial product was a line of antennas which integrated a log periodic set of driven elements with long yagi directors and a reflector to provide the highest possible gain and bandwidth over any given Amateur Band.

   "KLM", as a historical footnote, stood for Ken, Leeland, and Mike, the original group  of Ken Holladay, Leeland "Mel" Farrer, and Mike Staal who together started KLM.

   My main task was to tune up and prepare incoming VHF/UHF multimode transceivers for shipment, work with the Japanese suppliers to improve the products, and repair units returned for service. I was Service Manager and provided Customer Support as well as helping prepare user's manuals and application notes.

   During this period a number of SF Bay Area hams began experimenting with TVRO reception in their own back yards. My friend and mentor Paul Shuch, N6TX, was one of the first to actually develop a commercially viable TVRO (Satellite TV) receiver which was sold by International Crystal (ICM), if I remember correctly. Later, KLM also got into the TVRO business with both dish antennas (naturally) and an LNA / image reject mixer combination. I became the foreman overseeing production of these units as well as performing purchasing functions for the product.

   I also inherited the daytime oversight of the Power Amplifier line, developed methods to tune them up with better linearity, and also performed purchasing functions. Additionally, we had commercial versions of the 80W VHF and 70W UHF amplifiers for which I developed appropriate Low Pass Filters (designed by Mel) then did the required testing and submissions to obtain FCC Type Acceptance approvals.

   These were good times, overall. Unfortunately, the Ham Radio business isn't as lucrative as most hams think it is, especially for a U.S. based manufacturer. While Japanese companies have all of their million plus ham market plus Europe plus the U.S., we had only the domestic market which at that time was not in a growth mode. KLM was sold to a new owner in 1979. It later sold again and ultimately adopted the Mirage label for its amplifier line (based on Ken Holladay's designs, originally) and has since then split up to separate owners for the antenna and amplifier businesses.  The KLM antenna line, in fact, disappeared abruptly late in 1999.

   Due partly to the change of ownership in 1979 along with a timely but unsolicited job offer providing a significant wage increase and a reduction in commute time from 45 minutes to about 20 minutes, I took a position with Identronix, Incorporated in Santa Cruz, California.

Manual and Schematics

I have a copy of the operator manual scanned but it is 16.400 KB zipped. I do have it broke down page by page if needed and in sections to be emailed.  I also have the schematic scanned in PDF and jpg's.  Zipped the jpg's are 4,815 KB and the PDF is 2885 KB.   It is broke down into four pages and can be split up as well.  Also you will find the Oscar converter schematic in the manual and a nice block diagram.  Please e-mail if you would like any of these.  I would like to find a service manual one day in typical Ham fashion.  NOW I have the service manual which I can provide.  If you send email requesting something PLEASE be specific of what parts and which manuals you want and how large a file your email server can handle via email.    I will do my best to get these out to you as soon as possible.  Good Luck!

Well the mystery 432 converter appears to be solved.    On SSB it is quite difficult to tune and sometimes a little raspy for lack of a better word.  That could be operator error as well. Also it may need some tweaking.  FM tunes rather well. 

Special thanks to all who took time to e-mail me with any information they had.  As always Any and ALL help and/or suggestions would be appreciated.

 Please e-mail me at WK4R@Charter.net  with any comments if you like. 

Tnx & 73,