Menu

WTB: Collins KWM-2A

Search this Thread

Prev

Previous Post

Next Post

Next

#2

Report Post

Old

September 7th 03, 04:56 PM

Edward Knobloch

Posts: n/a

Default

wrote:
OK, per advice from others in this newsgroup, I am beginning my search
for a good Collins KWM-2A.

snip

Rick originally said he wanted SSB plus c.w. capability.
The KWM-2 is a fine SSB transceiver, but it's c.w.
operation is the pits. It keys an audio oscillator
(about 1.5 KHz)into the mic circuits to generate c.w.,
resulting in "artifacts": the (suppressed) carrier,
and a weak keyed c.w. spur 3 KHz below the main
keyed c.w. output. Unless you have perfect-pitch hearing,
it is impossible to zero beat someone on c.w.
using a KWM-2. Also, there is only the 2.1 KHz wide
mechanical filter, no additional c.w. filter provision.

Lack of RIT (receiver incremental tuning) is another
show-stopper on c.w. You must listen to the other
fellow's signal with a 1.5 KHz tone, if you wish
to be near zero beat. Most ops prefer to listen
to a lower pitch, about 700 Hz.

73,
Ed K4PF

Reply With Quote

Reply With Quote

Thread Tools	Search this Thread
Show Printable Version	Search this Thread: Advanced Search
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

Posting Rules
Smilies are On [IMG] code is On HTML code is Off Trackbacks are On Pingbacks are On Refbacks are On

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
FS: COLLINS 180-U-2 ANTENNA COUPLER	nbr	Boatanchors	0	September 1st 03 05:10 AM
Broken Collins 51J-4 tuning slug question	dave austerman	Boatanchors	1	August 30th 03 07:07 PM
FS: Collins 75A-2 and 75A-3 Receivers	W8KZW	Boatanchors	0	August 30th 03 05:21 PM
FS: NIB Collins Radio Parts	LDaniel102	Boatanchors	0	August 23rd 03 05:24 PM
Rockwell Collins "PropMan 2000" propagation s/w	Carl R. Stevenson	Antenna	0	August 21st 03 02:29 PM

All times are GMT +1. The time now is 04:41 AM.

About Us

"It's about Radio"

Contact Us RadioBanter forum home Privacy Statement

Copyright © 2017