The 22-805 DVM also sends useful ascii strings.
The bigger file is a little bit more readable.
Parts List There is a YahooGroup mailing list devoted to the HTX-252 located at m/group/htx252owners.
From December 1979 through July 1992, I was responsible for Radio Shacks 27-series (component parts and accessories) and the 22-series (test equipment, power supplies, radar detectors, and specialized radio equipment (CB and scanners were handled by another great buyer and ham).The number at the end of the file name is Radio Shack's faxback file number.Using a RS Discone and either amp, I can hear AM Aircraft signals very clearly that are 'in the noise' without the amps.Expanding the coverage in the HTX-404 From the owners manual Out of the box this radio covers only 440-450 MHz.If you can't find a manual please do not contact us, all the manuals we have are online.The digtial coding of the same data burst has the Julian day (i.e.Pro-43 Scanner The Pro-43 scanner (model number 200-0300) was introduced in 1992 and for a long time was their only portable scanner where the "UHF" band was 200-512 MHz instead of 400-512 MHz (they marketed the addition as adding military aircraft coverage and "low band".Of the ones I am familiar with the older unit is the 22-812 and the newer unit is a 22-168, later replaced with the 22-168A (yes, a numerically lower model number on the newer unit).Since the R7000 goes to 2 Ghz, I thought this preamp would be a good match.The serial protocol is similar to the 22-168 series - send a specific ascii characer and a CD, get back a 13 byte string with the value in ascii followed by the units (i.e V for volts) followed by.Secondly there are the simple first generation alert receivers that decode the 1050 Hz alert tone.Size: 3"3/8 x 2"5/16 x 1"1/16 less antenna.Adding either a COS or a TS32 PL decoder (or both) was easy - in fact a Pro-2004 was my across-the-garage link receiver or remote base receiver for repeater experimentation for several years.This unit is a cheap knockoff of Motorola's "Power Voice" mobile speaker with an interesting design twist.
I ended up leaving that DC block there and putting another on the input side.
My battery packs last a lot longer.
It's interesting that Sears sold a similar unit: the "Craftsman Professional, PC interface auto-ranging digital multimeter 82324".The official RS users guide is here as a 118 kB PDF.I couldn't figure out why they put a DC block on the antenna side of the amp.Interfacing the Weather Radio to a repeater controller Scott Zimmerman N3XCC connected a #12-251 Weather Radio to an Arcom repeater controller, but the 12-249, 12-250 and similar receivers (like the Reecom) would work just as well.To undo the mod just repeat the sequence again.Maxon took the HTX-404 design and made their "gmrs 210" series radios from.#12-248 "7 Channel Digital Pocket Weatheradio Alert Manual" 480 kB PDF This unit receives all seven noaa channels and decodes the 1050 Hz alert tone.
When scanning both AM and nbfm modes, one has to find a compromise position of the volume control.
The cpsc said that consumers should stop using these power supplies immediately, as the "power supplies are wired incorrectly, posing electrocution and fire hazards." The cpsc recommends for consumers to unplug the recalled power supply immediately and take it to any RadioShack store for.