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 AMPHF - Display Unit for Elecraft's KPA500 
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Digital Display Unit for Elecraft's KPA500
A compact, easy to read KPA500 Digital Display Unit (DDU). It allows the monitoring of five crucial readings all at the same time.
The DDU measures only 4X4X2 with an easy to read 2 line display that can be located at the operating position and the KPA500 located up to 100 feet away.
The DDU is designed with the following features:
Easy to read 2 line display
No USB or serial cable to computer
No com port in Windows to manage
No computer needed
Plug and Play
Simply connect the supplied DC power cable to power supply and PC data jumper cable to the KPA500
Retains all functions of the KPA500 front panel
All displayed info obtained directly from the KPA500
All cables supplied. Easy setup.
Newest Hardware and Software. $199 plus $10 shipping.
- Listing #1751769 - Submitted on 12/05/25 by Callsign KV5J, Modified on 12/09/25, Web Site: http://www.kv5j.com - IP: 93.152.220.171
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- RADIOHF - FOR SALE: KENWOOD TS590SG
- KENWOOD TS590 SG
Excellent condition
Original box
Microphone
Power cord (uncut)
Manual
Marscap
Used very little. Mostly for a receiver. Works great.
$1000.00
Pay pal
Reasonable offers will be considered
- Listing #1750959 - Submitted on 11/28/25 by Callsign N4JFX, Modified on 12/09/25 - IP: 26.sub-174-196-10.myvzw.com
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 MISC - Diamond SX-40 C, VHF Wattmeter/SWR FS
Diamond SX-40 C, VHF Wattmeter/SWR For Sale:
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The Diamond SX-40 C Wattmeter/SWR bridge covers
from 144 to 470 MHz. It has full scale of 300
or 30 Watts on forward, and 30 watts reverse.
It is a "dual needle" wattmeter, which means you
can read forward power, reverse power, and SWR
all at the same time.
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It is a compact 85 mm x 87 mm x 95 mm (basically
between 3 and 4 inches on all dimensions). It
has SO-239 connectors in and out.
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This one looks extremely nice. I can not find a
scratch or defect on it. It works 100% as it
should.
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Buy this nice meter with manual for $60 plus
shipping from Florida.
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Thanks. 73,
Ken Simpson, W8EK
Voice Phone (352) 732-8400
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- Listing #1752256 - Submitted on 12/09/25 by Callsign W8EK - IP: fl-67-76-85-5.sta.embarqhsd.net
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- MISC - MFJ 564 Chrome Iambic Paddles For Sale
MFJ 564 Chrome Iambic Paddles For Sale:
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This high performance iambic paddle has full
range adjustment of tension and contact spacing,
self-adjusting nylon/steel needle bearings,
machined frame, non-skid feet, and a heavy
Chrome base. They are a clone of the Bencher
BY-2.
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This set is immaculate. It looks like they
are new, and in fact they may be. They are
in their original box, with paper work, for
$90 plus shipping from Florida.
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Cable for paddles
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This cable is about 3 feet long, and has 1/4
inch stereo connector on the end, like
used by most rigs. It looks great. $8
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As above, but with 1/8 inch (3.5 mm) stereo
connector on end. $8
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Buy the 564 with one cable of your choice for $95.
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Prices do not include shipping from Florida.
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Thanks. 73,
Ken Simpson, W8EK
Voice Phone (352) 732-8400
.
- Listing #1752255 - Submitted on 12/09/25 by Callsign W8EK - IP: fl-67-76-85-5.sta.embarqhsd.net
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- MISC - KenPro KK-50 Deluxe Straight Key FS
KenPro KK-50 Deluxe Straight Key For Sale:
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The KK-50 is a deluxe straight key with exceptionally
good action. It is on a very heavy base, with nice
chrome arm, and a navy knob.
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Apparently, these are fairly rare, but the reviews
are extremely good. They are expensive, so that
may be why they are rare. E-bay has them for about $300.
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This one works as it should, and looks like new.
The chrome really shines! Buy if for $160 plus
shipping from Florida.
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Thanks. 73,
Ken Simpson, W8EK
Voice Phone (352) 732-8400
.
- Listing #1752254 - Submitted on 12/09/25 by Callsign W8EK - IP: fl-67-76-85-5.sta.embarqhsd.net
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- MISC - Full Power Low Pass TVI Filters FS
Full Power Low Pass TVI Filters For Sale:
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A low pass TVI filter is added to the transmitter
to reduce harmonic interference. All of these
will handle full legal power, have SO-239
connectors in and out, and are 50 ohm filters.
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B & W 425 (same as FL-10/1500)
Cuts off just above 10 meters, and handles
1500 Watts. $20.
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Nye Viking 020-001
Rated at 2000 Watts continuous, 5000 W peak SSB.
Over 65 dB Attenuation. It looks like new. $30
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Prices do not include shipping from Florida.
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Thanks. 73,
Ken Simpson, W8EK
Voice Phone (352) 732-8400
.
- Listing #1752253 - Submitted on 12/09/25 by Callsign W8EK - IP: fl-67-76-85-5.sta.embarqhsd.net
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- MISC - For Sale: Low Pass TVI Filters
For Sale: Low Pass TVI Filters
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A low pass TVI filter is added to the transmitter to reduce harmonic
interference. All of these have SO-239 connectors in and out, and
are 50 ohm filters.
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Archer 21-517 High Power LPF
Says in takes 1 KW AM to 30 MHz.
I would say about half that!
60 db attenuation above 50 MHz. $20
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Avanti AV-800
It says that the 3 db cutoff frequency is 43 MHz, and that it is
especially useful for Channel 2 and 5 interference. It also says
it is rated at 1000 Watts, but it looks more like 500 to 600 Watts
realistically. $18
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Pace PS8530
Cuts off at 40 MHz. 150 W Max.
$15
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Gold Line
Not much info other than it says for use from 0 to 30 MHz, and it
is rated at 1000 Watts. Again, I would say 500 to 600 watts. $17
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Para Dynamics PDC 1089
This filter is rated at a full Kilowatt, up to 30 MHz. In 5 x 6 x 2
inch black box, instead of a long enclosure. $20
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Prices do not include shipping from Florida.
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Thanks. 73,
Ken Simpson, W8EK
Voice Phone (352) 732-8400
.
- Listing #1752252 - Submitted on 12/09/25 by Callsign W8EK - IP: fl-67-76-85-5.sta.embarqhsd.net
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- TOWER - FOR SALE. US TOWER MAST RAISING FIXTURE
- PENDING. USTower MAST RAISING FIXTURE : PENDING
This fixture has been used one time. A must for raising your mast to install and /or raising mast to remove rotor. This unit from US Tower is about $800.00 new with Tax and Freight.
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I will SHIP to you for $435.00 lower 48 states. Cash or personal check. Check must clear bank. . Look this item up and you will see how important for your safety and help prevent damage to your tower /mast , etc.
The attached phot says it all , it’s a no brainer
Please give me a call if you have questions. My phone number bushings details attached to this ad.
73
Loyd
WB4BMQ
“Sweet Home Alabama”
- Listing #1748419 - Submitted on 11/03/25 by Callsign WB4BMQ, Modified on 12/09/25 - IP: syn-066-168-162-096.res.spectrum.com
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- MISC - For Sale: Kenwood External Speakers
- I am selling two Kenwood External Speakers:
1. SF-23
2. SP-120
Both Speakers work fine but the cases do have scratches on them and they were like that when I purchased them. I'm asking $40.00 for the two plus shipping for them but will sell separately. If you live Florida I will drive a reasonable distance to meet for pickup. Thank you for looking, Sean K4LOB
- Listing #1752250 - Submitted on 12/09/25 by Callsign K4LOB - IP: 37.sub-97-221-218.myvzw.com
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- TOWER - Rohn 25g HD Side Arm Mount
- New heavy duty Rohn 25G side arm mount. Extends a antenna over 30" away from face of tower. Mount is 36" High, 2.25" outer pipe OD to attach saddle clamps for a antenna. Just mount, no u-bolts. Mount is 70 pounds, so pickup is in 21702 only. $250. Thanks, Dave N3EJT
- Listing #1752249 - Submitted on 12/09/25 by Callsign N3EJT - IP: 211.sub-174-216-146.myvzw.com
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