Search found 118 matches

by jim202
Thu Mar 04, 2004 11:48 pm
Forum: Harris Public Safety Communications (PSPC) Equipment
Topic: M-RK upgrade
Replies: 3
Views: 4022

Re: MRK upgrade

You would be better off looking for a UHF radio. Trying to mod a VHF to go to the UHF range is like trying to take a Volkswagon and trying to make it into an 18 wheel truck. Non of the tuned RF circuits in the radio would work. All the RF sections in the radio will need to be changed. Being involved...
by jim202
Fri Jan 30, 2004 12:04 pm
Forum: Vertex
Topic: Squelch adjustment on FTL 1011 99ch
Replies: 3
Views: 5654

Re: Squelch adjustment on FTL 1011 99ch

[quote="N3CHU"]I need to get into the "service" mode to adjust the squelch on a 99 channel FTL1011 , can someone please give me the instructions?. Thank you very much. Davie N3CHU :([/quote] I don't think you have the right computer to make that adjustment. The interface is somet...
by jim202
Fri Jan 09, 2004 5:14 pm
Forum: RELM/Regency/Wilson
Topic: Relm RH256NB diagram needed or RF antenna switching section
Replies: 0
Views: 4003

Relm RH256NB diagram needed or RF antenna switching section

Have another radio problem. Radio took a lighning hit. Seems like the pin diode antenna switching isn't working. RX has about 1000 microvolt sensitivity. TX doesn't show any output on a watt meter.

Can't see any change in the DC bias on the pin diodes between RX and TX.

Jim
by jim202
Wed Jan 07, 2004 2:12 pm
Forum: Harris Public Safety Communications (PSPC) Equipment
Topic: G. E. Delta
Replies: 1
Views: 3742

Re: G. E. Delta

[quote="Medic-10"]How do I tell if my Delta is a S or SX?[/quote] By the model number and by looking at the RX front end. N3A113 VHF 136 to 153 wide band 40 watt, N3GG2W040TB N3A114 VHF 150 to 174 wide band 40 watt, N3HH2W040TB N3A117 VHF 150 to 174 wide band 110 watt, N3HH2W110TB N3A133 U...
by jim202
Tue Jan 06, 2004 5:10 pm
Forum: Midland
Topic: Midland 70-1336 programming information needed
Replies: 4
Views: 14124

Midland 70-1336 programming information needed

In need of information on programming a VHF mobile model 70-13336.

Where does the programming cable connect to the radio?

Which software is used to program this radio?

Thanks,
Jim
by jim202
Tue Jan 06, 2004 3:23 pm
Forum: Midland
Topic: 70-380b?
Replies: 5
Views: 7766

Re: 70-380b?

The 70-38B I have is VHF and I am looking for programming info on it.

Jim
by jim202
Sat Dec 27, 2003 11:29 pm
Forum: Harris Public Safety Communications (PSPC) Equipment
Topic: GE Phoenix Question
Replies: 7
Views: 8794

Guess you haven't spent much time working on any GE radios and had to do much programming. The PROM programmer may be fine for one or two channels, but when you need to do all 16, it gets to be a pain. Takes too much time and too easy to make a mistake.

Jim
by jim202
Fri Nov 21, 2003 9:04 pm
Forum: Harris Public Safety Communications (PSPC) Equipment
Topic: Another Ge Rangr question...
Replies: 4
Views: 6839

Re: Another Ge Rangr question...

You shouldn't have to do anything except play with the VCO adjustments. There is one for the RX and one for the TX. Program up a control head and download to the radio or get the EEPROM programmed in the radio. Have fun. The low band does have some image issues that you learn to live with. I am told...
by jim202
Sat Nov 08, 2003 10:01 am
Forum: Vertex
Topic: Mobile receiver overload?
Replies: 5
Views: 6422

Why not just use a simplex channel or the output of the repeater for simplex. That way your not fighting a desense problem for radios next to each other. Has worked great for better than 70 years.

Jim
by jim202
Fri Nov 07, 2003 4:34 pm
Forum: Harris Public Safety Communications (PSPC) Equipment
Topic: Ranger
Replies: 6
Views: 7747

Re: reply jim

I see that you indicated that you have the GE software. Have you made up any cables to be able to program up the Ranger? I have been looking for the interface and the cable info for some time now. I know that onew of these days my suitcase will go belly up. I bought it brand new way back about 1978 ...
by jim202
Thu Nov 06, 2003 7:45 pm
Forum: Harris Public Safety Communications (PSPC) Equipment
Topic: Ranger
Replies: 6
Views: 7747

Re: Ranger

Sounds like your getting a little testy. Calm down. There are limited methods to program the GE radios with the EEPROM you have. You did not indicate which control head you have with the radio. Some of the heads like the S950 , S990 and the S825 series all can be programmed and then downloaded into ...
by jim202
Wed Nov 05, 2003 9:17 am
Forum: Vertex
Topic: Mobile receiver overload?
Replies: 5
Views: 6422

Re: Mobile receiver overload?

Just about any radio will have some overload problems under the right circumstances. Even the top end Motorola radios will do this. So don't feel like your all alone. The stronger the signal your trying to listen to the better off your going to be. The further away from the other people's frequency ...
by jim202
Tue Oct 21, 2003 10:50 pm
Forum: General Chatter
Topic: MRK 2 -Switchable???
Replies: 13
Views: 13888

If your talking about the old GE mobile telephone type MRK II radio, the terms narrow and wideband channels hadn't even been thought about back in those days.

Jim
by jim202
Tue Oct 07, 2003 7:09 pm
Forum: General Chatter
Topic: Motorola maxtrac for use as a trunking scanner
Replies: 2
Views: 6046

Re: Motorola maxtrac for use as a trunking scanner

You can use the 800 Maxtrac as a trunkimg scanner. However there are a few things that you need to know about. First and most important, the normal Maxtrac will not do type II systems without being modified. The mod is mainly just changing the EPROM in the radio called firmware. If you can obtain th...
by jim202
Sun Sep 14, 2003 3:48 pm
Forum: General Chatter
Topic: Time for new radios - need advice!
Replies: 4
Views: 7625

Have you thought about mounting the trunk mount radios under the rear seats or on the rear seat floor. Just make a sheet of 1/4 plywood to go on top of the radios and then put a rug over it all. Works great, have don it to a number of different trucks. You can even mount the radios on a sheet of ply...