Low Profile Amateur Radio: Operating a Ham Station from Almost Anywhere .
Sold out at ARRL. Anybody has one collecting dust ?
73 Rag LA5HE
mail2web - Check your email from the web at
http://link.mail2web.com/mail2web
Update on the PZ1AA situation for the CQ 160 CW contest.
Stations that have this callsign in their log will have the QSO not count.
There is no penalty associated with removing the QSO. It will be counted
as a duplicate QSO.
73 Tree N6TR
CQ 160 Log Checker
On Wed, Feb 5, 2014 at 5:52 AM, Don
To all,,, I am relatively new to 160,,, I work the vhf/uhf/Eme spectrum,so I
am used to weak signal work,, I just moved to arizona,and decided to try
160!!,. I had no problem working the HS0 yesterday morning , but I could not
hear the XV7 this morning,,I heard a lot of my neighbors working
I see somebody is trying to sell a copy or two for 369.00 on Amazon and
Ebay.LOL
Mike W0MU
On 3/18/2014 4:08 AM, la...@otterstad.dk wrote:
Low Profile Amateur Radio: Operating a Ham Station from Almost Anywhere
_
Topband Reflector Archives -
I worked XV7BM on 160 at my sunrise (about 1400z) this morning, running
about 900w, and transmitting/receiving on the same antenna, a half-sloper
off a 110' tower. He was peaking over s-9 when I worked him.
All the same facts applied to my QSO with HS0ZKX yesterday.
Now if only XZ1Z would
I'm working on a new matching network for my vertical. The vertical is a wire
cage of approx. 82 feet high, and I use it on 160, 80 and 40 meters. The
matching network is a low-pass L network. The new matching network is remotely
tunable with 5 different capacitors selected by vacuum relays and
I just bought a 1000ft spool of unused Andrew AD6TS-BF type 6 coax (?RG6) to
use as Beverage feedline. I can't find any specs on the Internet. Does anyone
on this list have any information about this coax. Many thanks.
Charlie W2GN
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Topband Reflector Archives -
... http://www.oocities.org/yanpingma2000/mocsy-catalog.pdf Page 6?
73ss
Carsten, DL6LAU
Am 18.03.14 18:52, schrieb Charles Stackhouse:
I just bought a 1000ft spool of unused Andrew AD6TS-BF type 6 coax (?RG6) to
use as Beverage feedline. I can't find any specs on the Internet. Does anyone
You could also use that stuff to feed your TX antenna. I do here. If it's
like the Commscope CATV F-6 coax I have, it'll handle about 3 kW
continuously on 160.
73, Mike
www.w0btu.com
... http://www.oocities.org/yanpingma2000/mocsy-catalog.pdf Page 6?
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Topband Reflector
Tom,
I worked XV7BM at 1328z this morning about 10 minutes before our SR. When I
worked him, he was 559, but within 10 minutes he was 579!
I'm running about 1400 watts out to a 70 ft vertical with (2) 50 ft top hat
wires. I have over 100 135 ft ground radials. My RX antenna is a HI-Z 4 SQ
Here's my question: the large inductor is much higher Q on 160 than the
small inductor (large inductor is about 4.5 diameter, small one about 2
diameter). Would it be better to have the large inductor connected to the
antenna and the small one to the feed (the two inductors would still be in
Hi Tom,
Welcome to topband! As you gain experience you will encounter
many situations where your transmit antenna is inadequate for
receiving. An excellent receiving antenna can provide as much as
10 dB improvement compared to an omnidirectional vertical
transmitting antenna, not only in
On 3/18/2014 11:10 AM, Mike Waters wrote:
You could also use that stuff to feed your TX antenna. I do here. If it's
like the Commscope CATV F-6 coax I have, it'll handle about 3 kW
continuously on 160
Mike,
RG numbers for coax no longer mean much in terms of a specification.
There are dozens
Commscope owns Andrew, likely just a different name imprinted on the jacket.
Carl
KM1H
- Original Message -
From: Mike Waters mikew...@gmail.com
To: topband@contesting.com
Sent: Tuesday, March 18, 2014 2:10 PM
Subject: Re: Topband: Andrew RG6 specs ?
You could also use that stuff
Regarding the copper clad steel (CCS) center conductor, you can easily get RG6
with a solid bare copper (BC) center conductor too. BC center conductor is
important for security cameras (which are baseband), and for satellite
applications (which send DC over the center conductor to power the LNB
The inductors are homebrew, but beefy. Basically I use 1/8 thick G10 phenolic
with holes drilled in a cross vise (to maintain spacing), 8 gauge wire for the
windings, and three aluminum brackets shaped like this \___/ arranged like a
triangle on each end to hold the G10 in place. It ends up
Tom ole buddy.. Call me on the secret Zilla line and let's chat. We can
hook a brother up !! :-
On Tuesday, March 18, 2014, wa8...@wa8wzg.net wrote:
To all,,, I am relatively new to 160,,, I work the vhf/uhf/Eme
spectrum,so I am used to weak signal work,, I just moved to
You mention keeping the highest impedance part clean electrically, which
would make me think putting the small coil nearest the anteanna would be
best. Whichever part of the inductor is shunted out is essentially just
adding stray capacitance, that keeps the shorted turns part of the inductors
Many have tested various grades of RG-6 shield integrity from HF to
microwave in a lab enviroment.
It does vary, even at HF and low VHF so I suggest sticking to a name brand
and getting the best you can afford as it is more likely to be better over
time. Even a single braid varies in
- Original Message -
From: Tom W8JI w...@w8ji.com
To: Bill Wichers bi...@waveform.net; topband@contesting.com
Sent: Tuesday, March 18, 2014 5:33 PM
Subject: Re: Topband: Antenna matching question
You mention keeping the highest impedance part clean electrically, which
would make me
If this is only 160-40 you probably won't have a series resonance issue
with unused turns, but if you cover a wide range you will want to
progressively short the large coil taps. This is why band switches that
do not short (like the old National amp) and why large roller inductors
mess up on
Tom,
I have an amplifier with a pair of 3-400Zs I built in the 60s. When I built it
it was for 20, 15 and 10 meters.
I used 3 of the 5 positions of a BC375 tuning unit switch. Everything work
fine. I added 160, 80 and 40 meters.
160 was switched in and out with a RJ-1a vacuum relay. When I
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