The filter has been sold. Thanks for all the interest. 73 On Sep 7, 2013, at 2:40 PM, W7TYN wrote:
> I have the following item for sale. Please respond to me off list if you > are interested or need photo documentation: > > 1 ea. Original OSCAR Mode J Desense Filter . $20.00 $12.00 USPS > Priority mail. I will give $10.00 donation to amsat in appreciation for all > there help, when I was active on the "Birds". > > Uplink on 2 meters downlink on 70cm. This filter reduces the problem of the > up link signal desensing the receiver. This filter has low insertion > loss(typically less than 0.5dB in the 70 cm band)(This filter and good > rejection (typically over 50 dB in the 2 meter band.) This filter should be > inserted between the 70cm antenna and 70cm preamp. Transmitting through this > filter is not recommended so it should be removed or bypassed before > transmitting on 70cm. I fabricated this filter out of 3" copper pipe from a > drawing and article in the AMSAT journal a number of years ago. A drawing > appears in the 1980 ARRL Handbook. Silver and teflon trim coax fittings used > on the input and output connections. > > W7TYN AMSAT # 3951 > _______________________________________________ > Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
